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Agate

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Formula:
SiO
 
2
Name:The name is derived from its occurrence at the Achates River in southwestern Sicily.
A variety of Chalcedony

A distinctly banded variety of Chalcedony.
Originally reported from Dirillo river (Achates river), Acate, Ragusa Province, Sicily, Italy.

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Classification of Agate

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Chemical Properties of Agate

Formula:
SiO
 
2
Simplified for copy/paste:SiO2
Essential elements:O, Si
All elements listed in formula:O, Si

Other Names for Agate

Synonyms:
AchatesOriental Agate
Other Languages:
Dutch:Agaat
Finnish:Akaatti
French:Agate grossière
Agate orientale
Agate périgone
Agate rubanée
Agate Versiclore
Agate zonaire
German:Achat
Italian:Agata
Agata-diasporo
Japanese:玉髄
Latin:Achates vix pellucida, nebulosa, colore griseo mixto
Agathe vixpellucida nebulosa colgriseo ore mixta
Simplified Chinese:玛瑙
Varieties:
Abakusz-köAgate-JasperAgatized coralBlue Lace AgateBotswana Agate
Brecciated AgateCloud AgateCrazy Lace AgateEnhydro AgateEye Agate
Fairburn AgateFortification AgateFossil AgateHaema-ovoid-agatesHerbeckite
Iris AgateLaguna AgateLake Superior AgateMexican Lace AgateMocha Stone
Nipomo AgateOnyxPigeon Blood AgatePlume AgateRiband Agate
SardonyxSnakeskin AgateVogelaugenachatYoungite

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Agate

Reference List:

- +
Götze, J., Plötze, M., Fuchs, H., and Habermann, D. (1999) Defect structure and luminescence behavior of agate - results of electron paramagnetic resonance (EPR) and cathodoluminescence (CL) studies. Mineralogical Magazine: 63: 149-163.

Carlson, M.R. (2002) The Beauty of Banded Agates. Edina: Fortification Press.

Zenz, J. (2005): Achate. Bode Verlag, 656 pp. (in German).

Zenz, J. (2009): Achate II. Bode Verlag, 656 pp. (in German).

Moxon, T. (2009): Studies on Agate: Microscopy, Spectroscopy, Growth, High Temperature and Possible Origin. Terra Publications, Doncaster, UK, 96 pp.

extraLapis No. 39 (2010): Achate - geboren aus Vulkanen. Chr. Weise Verlag, Munich, Germany, 98 pp. (in German).

Mindat.org articles about Agate

Article entries:
Book Review - Agates IIJolyon & Katya Ralph
Wonderful World of Agates, WisconsinDavid Von Bargen

Internet Links for Agate

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  • Lapis Mineral Magazin
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  • Rare and Unusual minerals at Mineralogical Research Company
  • Buy from David K Joyce minerals
  • Search for Agate on Well-Arranged Molecules
  • Fine and rare minerals from mintreasure.com
  • Specimens:The following Agate specimens are currently listed for sale on minfind.com.

    Localities for Agate

    The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Angola
     
    • Zaire Province
    António Manuel Ináçio Martins.
    Argentina
     
    • Catamarca
      • Andalgalá Department
    Raúl Jorge Tauber Larry photo & collection
    Dirección Provincial de Geología y Minería de la Provincia de Catamarca (1970). Padrón de Minas.
    Dirección Provincial de Geología y Minería de la Provincia de Catamarca (1970). Padrón de Minas.
    Dirección Provincial de Geología y Minería de la Provincia de Catamarca (1970). Padrón de Minas.
    • Chubut
      • Mártires Department
        • Las Plumas
    Van King
    • Entre Ríos
    Journal of the New York Botanical Garden (1918) p40
    Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
    Raúl Jorge Tauber Larry (1967). Visita al arroyo Espinillo en la Provincia de Entre Ríos.
    • La Rioja
      • Coronel Felipe Varela Department
    Ra{ul J. Tauber Larry
    • Mendoza
    Henry Minot photo
      • San Rafael Department
    Roland Noack collection
    Maximilian Pusch and Roland Noack collections
      • Sierra de Cacheuta
    Van King
    Luis de los Santos
    Luis de los Santos
    Luis de los Santos
    Luis de los Santos
    • San Juan
      • Valle Fértil Department
    Raúl J. Tauber Larry
    • Santa Cruz
      • Deseado Department
    Raúl Jorge Tauber Larry
    Raúl J. Tauber Larry´s collection.; Hugo A. Peña (1970): Minerales y rocas de aplicación de la Provincia de Tucumán. Secretaría de Estado de Comercio, Industria y Minería. Dirección Provincial de Minas. Tucumán. República Argentina.
    Raúl J. Tauber Larry´s collection.
    Hugo A. Peña (1970): Minerales y rocas de aplicación de la Provincia de Tucumán. Secretaría de Estado de Comercio, Industria y Minería. Dirección Provincial de Minas. Tucumán. República Argentina.
    Armenia
     
    • Aragacot'n Province (Aragatsotn)
    • Tavuš Province (Tavush)
      • Idzhevan
    Pavel M. Kartashov data
    Australia
     
    • New South Wales
      • Baradine Co.
    Myatt, B. (1972) Australian and New Zealand Gemstones. Paul Hamlyn Pty Ltd., 511 pp.
      • Clarke Co.
        • Oban
    L.B. Gilligan et al. Dorrigo-Coffs Harbour 1:250 000 Metallogenic Map and Mineral Deposit Data Sheets.
      • Northumberland Co.
        • Allandale
    Keith Compton collection
      • Pottinger Co.
    Mark Rheinberger pers comm
    • Northern Territory
      • Victoria-Daly Shire
    Modat Mineral Occurrence database; Northern Territory Geological Survey 2002.
    [var: Fortification Agate]
      • Etheridge Shire
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
      • Rockhampton Region
    [var: Eye Agate]
      • Tweed Shire
        • Mount Warning
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
    • South Australia
      • Eyre Peninsula
    Hiern, M.N. (1970) Pandurra agate deposit. Mineral Resources Review, South Australia, Vol. 128. pg. 196-199.
    Personal Collection of Ben Grguric; Hiern, M.N. (1970) Pandurra agate deposit. Mineral Resources Review, South Australia, Vol. 128. pg. 196-199.
      • Mt Lofty Ranges
        • North Mt Lofty Ranges
          • Spalding
    from vince peisley collection
    • Tasmania
    Keith Lancaster - Minerals and Gemstones of Tasmania and their locations. ; Lancaster, K.E. 1980. Minerals of Tasmania and their locations. Gemcraft Publications. East Malvern, Victoria
      • Central Plateau
        • Bronte Park
    Just came across some of the gold I found detecting on the west coast of Tasmania many years ago . I melted down a fair few of the small nuggets I found to make my wife's and my engagement and wedding rings. Biggest piece only 2 cm across. Hard work that metal detecting ,but I guess you only have to swing over the right piece to strike it rich.; Keith Lancaster - Minerals and Gemstones of Tasmania and their locations.
        • Waddamana
    Lancaster, K.E. 1980. Minerals of Tasmania and their locations. Gemcraft Publications. East Malvern, Victoria
      • Hobart
    Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
      • Huon district
    Bottrill & Baker 2008
    Holocene gravels containing Agate, Jasper and Petrified Wood. ; Lancaster, K.E. 1980. Minerals of Tasmania and their locations. Gemcraft Publications. East Malvern, Victoria
      • Lymington
    Occurrences of Gemstone Minerals in Tasmania, R.S. Bottrill and W.L. Matthews, 2005, Mineral Resources Tasmania
      • Maydena district
    R. Bottrill 2007. GEOLOGICAL NOTES – MAYDENA AREA. Mineralogica Tasmanica. 61
      • Swansea
    M Latham Collection;
      • Wynyard district
        • Calder
    Bottrill and Baker, 2008, Catalogue of Minerals of Tasmania
    • Victoria
      • Cardinia Shire
    Birch, W. D. and Henry, D. A. (1997): Gem Minerals of Victoria
      • Emerald
    Flett, J., The History of Gold Discovery in Victoria, Poppet Head Press,
      • Indigo Shire
    [var: Enhydro Agate]
      • Phillip Island
        • Kitty Miller Bay
    [var: Eye Agate]
      • Rural City of Wangaratta
        • Eldorado
    Dunn, E.J.,(1913). Bulletins of the Geological Survey of Victoria No. 25. The Woolshed Valley, Beechworth. Department of Mines.
      • Southern Grampians Shire
    Judy Rowe Collection
    • Western Australia
      • Ashburton Shire
        • Wyloo Station
    austgems
      • Bunbury Shire
    Steve Sorrell Collection
    Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA
      • East Pilbara Shire
        • Marble Bar
    Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA
        • Marillana Station
    Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA
    Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA
    KIm McDonald collection
    Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA
      • Meekatharra Shire
        • Bulloo Downs Station
    Gemstones of Western Australia; Dept of Minerals and Energy; Western Australian State Government; Perth, 1994; http://www.kumarina.com/projects-Ilgarari.php; The West Australian newspaper, The Mining Industry. Northern Fields. Inspectors Report, 15/02/1929;
      • Ngaanyatjarraku Shire
        • Warburton
    Fetherston, J., Stocklmayer, S., Stocklmayer, V. (2013): Gemstones of WA, Geological Survey of WA
    Austria
     
    • Carinthia
      • Gailtaler Alpen & Karnische Alpen
        • Arnoldstein
          • Villacher Alpe (Dobratsch massif)
    G. Niedermayr: Mineralien-Welt 10(9):52-56 (1999)
      • Karawanken
        • Zell-Pfarre
    G. Niedermayr: Carinthia II 190./110.:187-188 (2000)
      • St Paul im Lavanttal
        • Kollnitz
    G. Niedermayr: Mineralienwelt 10(9):52-56 (1999)
    • Lower Austria
      • Mostviertel
    R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
        • Obritzberg-Rust
          • Winzing
    Kolitsch, U., Brandstätter, F. & Huber, P. (2010): 1656) Achat, Chalcedon und Cr- und Fe-reicher Spinell aus einer Sandgrube SSE von Winzing, Niederösterreich. P. 242 in Niedermayr et al. (2010): Neue Mineralfunde aus Österreich LIX. Carinthia II, 200./120., 199-260.
      • Waldviertel
        • Drosendorf-Zissersdorf
          • Pingendorf
    Niedermayr, G. (1990): Eine bemerkenswerte Zeolithparagenese aus einem Serpentinitsteinbruch bei Pingendorf in Niederösterreich. Mineralien-Welt, 1 (2), 31-34.
    Peter Lamatsch collection
        • Langenlois
    Albert Prayer collection
        • Maissau
    Knobloch, G. (2007): Maissauer Amethyst - Formen, Farben, Faszination. - Bode Verlag, Germany, 96 p.
        • Röhrenbach
          • Winkl
    Kurz, B. (2009): Zn-Fe-Pb-Cu-Mineralisationen in Marmoren der Bunten Serie, Böhmische Masse, Niederösterreich. Diplomarbeit, Universität Wien, 147 S.
    • Salzburg
      • Hohe Tauern
        • Gastein valley
          • Anlauf valley
    A. Strasser: Die Minerale Salzburgs, 1989
      • Salzburg
        • Glasenbach
    A. Strasser: Die Minerale Salzburgs (1989)
    • Styria
      • Graz
        • Wildon
          • Weitendorf
    Aufschluss 1972(SB), 76-79
    • Upper Austria
      • Grieskirchen
    In the collection of Gerhard Brandstetter
    Bolivia
     
    • Cochabamba Department
      • Esteban Arce Province
    specimens collected by Alfredo Petrov, Richard Dale, Amir Akhavan.
    • Potosí Department
      • Chayanta Province
    Alfredo Petrov, field trip observations, 2005.
      • Sud Lípez Province
    Salomon Rivas y Federico Ahlfeld (1998) Los Minerales de Bolivia y sus Parajes. (Santa Cruz)
    Botswana
     
    • Central District
    Van King
    Brazil
     
    • Minas Gerais
      • Jequitinhonha valley
    • Pará
      • São Geraldo do Araguaia
    [var: Onyx] Revista Brasileira de Geociências, vol.30
    • Paraíba
      • Cachoeira dos Índios
    Cassedanne, J. (1984): Les Agates du Sitio Garguelo (Municipe de Cachoeira dos Índios, Paraiba). Anais da Academia Brasileira de Ciencias. 56, 169-181
    • Paraná
      • Foz do Iguaçu
    Geological Survey Professional Paper 327 (U.S. Department of the Interior, 1959)
    • Rio Grande do Norte
      • Borborema mineral province
    • Rio Grande do Sul
      • Alto Uruguai region
    Mineralogical Record (2009) 40:121-125
    Rob Lavinsky
    www.gemstone.org/gem-by-gem/english/fire.html
        • Três Pinheiros
    Karel Bal Collection
    Strieder, A. J., & Heemann, R. (2006). Structural constraints on Paraná basalt volcanism and their implications on agate geode mineralization (Salto do Jacuí, RS, Brazil). Pesquisas em Geociências. Porto Alegre, RS. Vol. 33, n. 1 (2006), p. 37-50.
    • Santa Catarina
    Manfred Bergmann (2009) Lapis, 34, #3, 30-34.
    Manfred Bergmann (2009) Lapis, 34, #3, 30-34.
    Bulgaria
     
    • Haskovo Oblast (Khaskovo Oblast)
      • Rhodope Mts
    Marchev, P., Downes, H., Thirlwall, M. F., & Moritz, R. (2002). Small-scale variations of 87Sr/86Sr isotope composition of barite in the Madjarovo low-sulphidation epithermal system, SE Bulgaria: implications for sources of Sr, fluid fluxes and pathways of the ore-forming fluids. Mineralium Deposita, 37(6-7), 669-677.
    Janakieva, Zh., Ch. Nachev, D. Yordanova. Finds of Moganite in Bulgaria.Poster.ІІІ International Symposium “Mineral diversity -Research and preservation” 7-10 October, 2005, Sofia.
      • Krumovgrad Obshtina
    http://www.clmc.bas.bg/Annreps/ANNREP8/annrep8.htm
    Anton Ivanov field observation
      • Rhodope Mts
    http://www.clmc.bas.bg/Annreps/ANNREP8/annrep8.htm
    Tsintsov, Z., B. Banushev, E. Vulev. 2006. Sagenitic agates from the Eastern Rhodopes. Mining and geology, 10, 36-40 (in Bulgarian with Russian and English abstracts).
    • Sofiya Oblast (Sofia Oblast)
      • Vitosha Mt
    Tsintsov, Z. L., & Banushev, B. S. (2008). Agate geodes from the region of Vladaya village, NW Vitosha, Bulgaria. Dokladi na B lgarskata akademiâ na naukite, 61(1).
    Canada
     
    • British Columbia
      • Kamloops Mining Division
        • Mt. Savona
          • Deadman's River
    www.em.gov.bc.ca/cf/minfile
      • Omenica Mining Division
        • Burns Lake
    www.em.gov.bc.ca/cf/minfile
        • Kemano
        • Troitsa Peak
    MINFILE No 093E 120
      • Vernon Mining Division
        • Vernon
    www.em.gov.bc.ca/cf/minfile; Simandl, G. J., Hancock, K. D., Callaghan, B., Paradis, S., & Yorke-Hardy, R. (1997). Klinker Precious Opal Deposit, South Central British Columbia, Canada-Field Observations and Potential Deposit-Scale Controls. British Columbia Ministry of Energy and Mines, 321-327.
    • Manitoba
      • Souris
    John Sinkankas (1959) Gemstones of North America: Volume 3; Phillips, K. A. (1978) Minerals of Manitoba: Vol 1 Nonmetallic and pegmatic. Manitoba Mineral Resources Division Educational Series 78/1.; Ormerod, M. J., M.D. (1964) Gemstones of Manitoba: Lapidary Journal, v.18, no. 6, p. 704.
    • New Brunswick
      • Charlotte Co.
        • Grand Manan Island
    McHone, Greg, 2008, Grand Manan Geology, p. 3.
    McHone, Greg, 2008, Grand Manan Geology, p. 3.
    Leiper (ed.), 1966. The Agates of North America
      • Cumberland Co.
        • Parrsboro
    Rocks & Min.41(2):88 (1966)
      • Kings Co.
        • Bay of Fundy
    \"Mineral Resource Land Use Map of Kings County OFM 88-048 (21H/02)\" Nova Scotia Department of Mines and Energy, 1989.
          • Ross Creek
    O.C. Marsh (1863) "Catalogue of Mineral Localities in New Brunswick, Nova Scotia, and Newfoundland", American Journal of Science, Series 2, Vol. 35:210-218.
    • Nunavut Territory
      • Baffin Island
        • Nanisivik
    GD Jackson, TR Iannelli, RD Knight (1986) Neohelikian Bylot Supergroup of Borden Rift Basin, northwestern Baffin Island, District of Franklin - Current research, part A.
      • Mallery Lake
    Turner, W.A., Richards, J.P., Nesbitt, B.E., Muehlenbachs, K., and Biczok, J.L. (2001): Mineralium Deposita 36, 442-457.
    • Ontario
      • Algoma District
    GSC Misc.Report 49, by Ann P.Sabina 1991, Rocks and Minerals for the Collector, Sudbury to Winnipeg
    Satterly, J. (1977) A Catalogue of the Ontario Localities Represented by the Mineral Collection of the Royal Ontario Museum; Ontario Geological Survey Miscellaneous Paper MP70,464p.
        • MacGregor Township
    Kelso, I.S. and Kissin, S.A.,(2002) Geology and fluid inclusion studies of the Thunder Bay Agate Mine, Northwestern Ontario Proceedings Volume of the Institute on Lake Superior Geology Vol 48 pp 22-2
        • McTavish Township
    Ontario Gem Company
    Traill, R. J. (1980) Catalog of Canadian Minerals: Revised 1980. Geological Survey of Canada Paper 80-18.
        • St.Ignace Island Area
    Ann P.Sabina (1991), Rocks and Minerals for the Collector, Sudbury to Winnipeg. GSC Misc. Report 49. p.111
    • Québec
      • Gaspésie-Îles-de-la-Madeleine
        • La Haute-Gaspésie RCM
    Frédéric Messier Leroux (2005 Field Observations)
    Chile
     
    • Arica and Parinacota Region
      • Arica Province
    Alfredo Petrov collection
    • Atacama Region
      • Copiapó Province
        • Cerro Blanco district
    I.Domeyko Museum collection in the La Serena School of mine; Sernageomin database; Flores H. (1938); Informe preliminar sobre el mineral de Cerro Blanco", Paipote (Copiapo), Chile
    H. Flores (1938): "Informe Geológico preliminar sobre el mineral de Cerro Blanco; Sociedad Explotadora de Minas, Paipote (Copiapó), Chile.
        • Maricunga belt
    Sernageomin database 2005;Stgo de Chile
      • Huasco Province
        • Carrizal Alto district
    C. Ruiz Fuller/F. Peebles (1988): "Yacimientos metalíferos de Chile": Fondecyt, Stgo de Chile.
    China
     
    • Heilongjiang Province (Manchuria; Dongbei Region)
      • Daxing'anling Prefecture
        • Songling District
    Yongming Shi, Qun Zhu, and You Gao (2006): Geology and Prospecting 42(5), 23-27
    • Sichuan Province
      • Garzê Autonomous Prefecture (Ganzi Autonomous Prefecture)
        • Kangding Co.
          • Daduhe gold field
    [var: Onyx] Zhimin Cao (1991): Journal of Chengdu College of Technology 18(4), 26-36
      • Liangshan Autonomous Prefecture
    Liangju Zhang, Can Rao, Changlong Zhang, Qingfeng Ruan, Wei Lei, Baoli Liao, and Tao He (2008): Journal of Guilin University of Technology 28(3), 289-294
    • Tibet Autonomous Region
    http://www.tibetinfor.com/tibetzt/naqu/doc/0301.htm
    • Xinjiang Autonomous Region
      • Akesu Prefecture (Aksu Prefecture; Aqsu Prefecture)
    Yanling Tang (2005): Non-metallic mineral deposits of Xinjiang, China [Zhongguo Xinjiang Fei Jinshu Kuangchuang]. Geological Publishing House (Beijing), 289 pp.
      • Changji Autonomous Prefecture (Sanji Autonomous Prefecture)
    Yanling Tang (2005): Non-metallic deposits of Xinjiang, China [Zhongguo Xinjiang Fei Jinshu Kuangchuang]. Geological Publishing House (Beijing), 289 pp.
      • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
        • Barkol Co. (Barköl Co.; Balikun Co.)
          • Twin Peaks area
    Chunzeng Wang, Jinfu Lin, and Kaiqiu Dai (2001): Mineralium Deposita 36(5), 458-464.
        • Yiwu Co. (Aratürük Co.)
          • Naomaohu
    Yanling Tang (2005): Non-metallic deposits of Xinjiang, China [Zhongguo Xinjiang Fei Jinshu Kuangchuang]. Geological Publishing House (Beijing), 289 pp.
      • Tulufan Prefecture (Turfan Prefecture; Turpan Prefecture)
    Yanling Tang (2005): Non-metallic deposits of Xinjiang, China [Zhongguo Xinjiang Fei Jinshu Kuangchuang]. Geological Publishing House (Beijing), 289 pp.
    • Yunnan Province
      • Zhaotong Prefecture
    http://ludian.mofcom.gov.cn/aarticle/tupianxw/200603/20060301755052.html
    Costa Rica
    Rocks&Min.16:325.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Central Bohemia Region
        • Beroun (Beraun)
          • Svatá Dobrotivá (St Benigna)
    [var: Herbeckite] Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 935.
        • Hořovice (Horschowitz; Horowitz)
    Janouš F.: Brdské acháty. Minerál, 1997, roč. 5, č. 6, s. 449-450.
        • Příbram
          • Vrančice
    [Lapis 1995, 12, p.13-24]
      • Hradec Králové Region
        • Broumov (Braunau)
    Vitezslav Snasel.
        • Jičín (Jitschin; Gitschin)
    Pauliš, P.: Nejzajímavější mineralogická naleziště Čech. Kutná Hora: Kuttna, 2000, s. 61.
    David Godziewski
    Vitezslav Snasel collection
    Vitezslav Snasel collection
    S.SIMKO
          • Dolní Kalná
    Slavomír Šimko collection
    Šreinová, B., Šrein, V.: Melafyry levínské plošiny. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1997, roč. 4-5, s. 200-203.
      • Liberec Region
        • Jilemnice (Starkenbach)
    No reference listed
        • Jizerské Mtn (Iser Mtn)
    geological prospecting, 2008 - 2009, Czech geological Organization
        • Kozákov (Kosakow)
    Duda, Rejl, Slivka: "Mineralien", 1991
        • Lomnice nad Popelkou (Lomnitz an der Popelka)
    David Godziewski
    V Snasel collection
    David Godziewski
    Pauliš, P.: Nejzajímavější mineralogická naleziště Čech II. Kutná Hora: Kuttna, 2003, s. 49-50.
    David Godziewski
    David Godziewski
        • Železný Brod (Eisenbrod)
    No reference listed
      • Ústí Region
        • Krušné Hory Mts (Erzgebirge)
          • Klášterec nad Ohří
    www.geocities.com/Smula.geo
          • Vejprty (Weipert)
    Vitezslav Snasel.
    • Moravia (Mähren; Maehren)
      • Moravia-Silesia Region
        • Frýdek-Místek
    I.Vašina(september 2011)-agate in limestone from locality Lískovec.
        • Příbor
    Smutný, Z.: Hončova hůrka – stav lokality a nálezy minerálů v letech 1995 – 1996. Časopis Slezského musea, series A: vědy přírodní, 1997, roč. 46, č. 2. s. 188 – 189.
      • South Moravia Region
        • Brno (Brünn)
    Mrázek, I.: Nová nelaziště achátu a opálu u Brna-Černovic. Časopis pro mineralogii a geologii, 1976, roč. 21, č. 1, s. 96.
    Denmark
     
    • Faroe Islands
      • Borðoy Island
    Torben Kjeldgård photo & collection
    France
     
    • Alsace
      • Bas-Rhin
    Rob Lavinsky (ex. D. Stark and Otto Hoffman specimen)
      • Haut-Rhin
        • Lauch Valley
          • Lautenbach
    J.-L. Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
        • Ribeauvillé
          • Bergheim
    J.-L. Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
        • Rouffach
          • Osenbach
    J.-L. Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
    • Aquitaine
      • Dordogne
        • Nontron
    M Arliguie collection
    • Auvergne
      • Allier
        • Jaligny-sur-Besbre
    Collected by François Périnet
      • Haute-Loire
        • Allègre
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
    P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
      • Puy-de-Dôme
        • Clermont-Ferrand
          • Saulzet-le-Chaud
    J.-J. Périchaud: "Les Minéraux d'Auvergne", Vol. 1, 1985
        • Saint-Dier-d'Auvergne
          • Saint-Jean-des-Ollières
    J.J. Périchaud: "Les Minéraux d'Auvergne", Vol. 1, 1985
    J.-J. Périchaud: "Les Minéraux d'Auvergne", Vol. 1, 1985
    • Lorraine
      • Vosges
        • La Bresse
    J.-L. Hohl: "Minéraux et Mines du Massif Vosgien", Editions du Rhin (Mulhouse), 1994
    • Midi-Pyrénées
      • Tarn
        • Réalmont
          • Montredon-Labessonnié
    [email protected]
    • Provence-Alpes-Côte d'Azur
      • Var
        • Fréjus
    Martins da Pedra collection
    • Rhône-Alpes
      • Ardèche
        • Saint-Péray
          • Cornas
    BRGM (1981) - Fiche BSS 08182X4002/GT
      • Loire
        • Saint-Symphorien-de-Lay
          • Regny
    Matthias Diot Collection
    Georgia
     
    • Kvemo Kartli Region
    Alexander G. Tvalchrelidze, Georges Morizot (2003) Mineral Resource Base of the Southern Caucasus and Systems for its Management in the XXIst Century. Springer 204pp
    • Samtskhe-Javakheti Region
    Alexander G. Tvalchrelidze, Georges Morizot (2003) Mineral Resource Base of the Southern Caucasus and Systems for its Management in the XXIst Century. Springer 204pp
    Germany
     
    • Baden-Württemberg
      • Black Forest
        • Baden-Baden
          • Iberg
    S. Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Leisberg
    No reference listed
        • Lahr
          • Schweighausen
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    K. Walenta: "Die Mineralien des Schwarzwaldes", Weise (Munich), 1992
        • Oberkirch
          • Oppenau
    S. Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Sulzburg
    Lapis 1980(3), 26-27
        • Wolfach
          • Oberwolfach
            • Rankach valley
    Kaiser, H. (1984): Die Grube Clara zu Wolfach im Schwarzwald. Verlag Karl Schillinger, Freiburg im Breisgau, 102 pp. (in German)
    • Bavaria
      • Franconia
        • Franconian Forest
          • Kronach
    Weiss: "Mineralfundstellen, Deutschland West", 1990
        • Spessart
          • Hösbach
            • Sailauf
              • Hartkoppe
    Aufschluss 1987(8/9), 275-277; Aufschluss 1987(10), 317-329
              • Rehberg
    Lorenz, J. (2006): Die Achate aus dem Rhyolith vom Rehberg bei Sailauf im Spessart. Lapis 31 (6), 13-20; 70.
      • Upper Palatinate
        • Grafenwöhr
          • Freihung
            • Tanzfleck
    Weiss: "Mineralfundstellen, Deutschland West", 1990
        • Oberpfälzer Wald
          • Erbendorf
            • Schadenreuth
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Brandenburg
      • Großräschen
        • Saalhausen
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Lübbenau
        • Calau
          • Plieskendorf
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    • Hesse
      • Odenwald
        • Lautertal (Odenwald)
          • Reichenbach
            • Hohenstein
    Collection of Steffen Michalski, ex-collection and collected by Klaus PETITJEAN
    • Lower Saxony
      • Harz
        • Bad Sachsa
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    • Mecklenburg-West Pomerania
      • Schwerin
    W. Hansch (Ed.): "Nordische Geschiebe - Zeugen der Eiszeit", Veröff. Städt. Museen Heilbronn, 1994
    • Rhineland-Palatinate
      • Alzey
    Maggie Wilson specimen
    Poser, C., and Lutz, H. (2004): Mineralien aus Rheinland-Pfalz.Landessammlung für Naturkunde Rheinland-Pfalz (Mainz)
        • Nack
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    O'Donoghue, M., ed. (1977): The Encyclopedia of Minerals and Gemstones. Rigby (Adelaide), 304 pp.
        • Wendelsheim
    H.-P. Schröder: Lapis 29(9):17-20 (2004)
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Eifel
        • Wittlich
    Poser, C., and Lutz, H. (2004): Mineralien aus Rheinland-Pfalz.Landessammlung für Naturkunde Rheinland-Pfalz (Mainz)
          • Binsfeld
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
          • Großlittgen
    Poser, C., and Lutz, H. (2004): Mineralien aus Rheinland-Pfalz.Landessammlung für Naturkunde Rheinland-Pfalz (Mainz)
      • Hunsrück
        • Baumholder
    http://www.mineralworld.de/deutschhome/Achate/Europa/Deutschland/Nahe/steinbruch_army.html
    http://www.mineralworld.de/deutschhome/Achate/Europa/Deutschland/Nahe/steinbruchbackesberg.html
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Birkenfeld
          • Dienstweiler
    http://www.mineralworld.de/deutschhome/Achate/Europa/Deutschland/Nahe/steinbruch_dienstweiler.html
    Land des Blauen Löwen - booklet
        • Herrstein
          • Niederwörresbach
    Weiss: "Mineralfundstellen, Deutschland West", 1990
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Idar-Oberstein
          • Fischbach
    Weiss: "Mineralfundstellen, Deutschland West", 1990
          • Göttschied
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    Leonhard C.C. (1812): Reise nach Oberstein durch das Tal der Nahe, in Leonhard & Selb, Mineralogische Studien, Verlag Schrag, Nürnberg 1812
    No reference listed
          • Tiefenstein
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Kirn
    Weiss: "Mineralfundstellen, Deutschland West", 1990
        • Monzingen
          • Langenthal
    A Bleeker collection
      • Palatinate
        • Annweiler am Trifels
    Poser, C., and Lutz, H. (2004): Mineralien aus Rheinland-Pfalz.Landessammlung für Naturkunde Rheinland-Pfalz (Mainz)
    Weiss: "Mineralfundstellen, Deutschland West", 1990
        • Kirchheimbolanden
          • Dannenfels
    Kohout, K. (2008): Der Steinbruch Giro am Mannbühl: Spitzenfunde aus 27 Jahren. Lapis, 33 (5), 32-35. ; Bungert, R., Frey, W.-G. and Hesse, P. (2008): Die Mineralien des Steinbruch Giro am Donnersberg, Pfalz. Lapis 33 (3), 13-19; 50.
        • Kusel
          • Reichweiler
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Otterbach
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
        • Rockenhausen
          • Hintersteinerhof
    Weiss: "Mineralfundstellen, Deutschland West", 1990
        • Winnweiler
          • Imsbach
    Hartmut Hensel
    • Saarland
      • Merzig
        • Reimsbach
    (Th. Kleser)
      • Nonnweiler
        • Kastel
    G. Müller
    Thomas Kleser & Erwin Ecker Collections
        • Sötern
    H. Schneider: Saarland. Sammlung geologischer Führer, Vol. 84. Borntraeger (Berlin, Stuttgart), 1991
      • Schmelz
        • Großer Horst
    Thomas Kleser Collection , XRD-analysis G. Müller, Scheid
      • St Wendel
        • Freisen
    Lapis 1977(6), 8
        • Oberkirchen
    Weiß, S. (1990): "Mineralfundstellen, Deutschland West", Weise (Munich).
        • Oberthal
    Lapis 1977(6), 8
        • Tholey
          • Steinbach
    http://www.strahlen.org/vp/de/setz/; Thomas Kleser collection
    • Saxony-Anhalt
      • Haldensleben
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Halle
        • Amsdorf
    Huhle, H. & G. Hohndorf (2013): Interessante Mineralienfunde aus dem Braunkohletagebau Amsdorf bei Halle a.d. Saale. Mineralien-Welt, 24( 6), 118-129.
      • Harz
        • Harzgerode mining district
          • Straßberg
    Thomas Lühr collection
    [var: Brecciated Agate]
      • Chemnitz
        • Hartmannsdorf
    Andreas Gerstenberg collection; Vollstädt, H. (1979): Einheimische Minerale, VEB Deutscher Verlag für Grundstoffindustrie, Leipzig, p. 289.
        • Pfaffenhain
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
      • Döbeln
        • Hartha
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
        • Mügeln
    Wittern: "Mineralfundorte in Deutschland", 2001
      • Dresden
        • Heidenau
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
    http://www.mineralienatlas.de/lexikon/index.php/Deutschland/Sachsen/Dresden%2C%20Direktionsbezirk/Bautzen/Ottendorf-Okrilla
      • Erzgebirge
        • Altenberg
    Wittern: "Mineralfundorte in Deutschland", 2001
        • Freiberg District
          • Brand-Erbisdorf
            • Himmelsfürst Mine
    Andreas Gerstenberg collection
          • Halsbach
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
        • Glashütte
    Wittern: "Mineralfundorte in Deutschland", 2001
        • Niederschlag-Bärenstein District
          • Bärenstein
            • Niederschlag
    Lapis, 19 (4), 13-22+50.
    Lapis 30(7/8):78-80 (2005)
        • Schwarzenberg District
          • Pöhla
    Wittern: "Mineralfundorte in Deutschland", 2001
      • Glauchau
    Christian Bracke Collection
      • Grimma
        • Bad Lausick
    Lüttich, M. (2008): Änderungen von Fundmöglichkeiten auf Lesesteinfeldern am Beispiel Ebersbach bei Bad Lausick in Sachsen, Der Aufschluss, Vol. 59, 201-207
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
    Jens Urban, Hainichen, pers. commun.
      • Mittweida
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
    H. Vollstädt, R. Baumgärtel: "Einheimische Edelsteine", 2nd. ed., Steinkopff (Dresden), 1977
      • Vogtland
        • Klingenthal
          • Kielberg
    Andreas Gerstenberg collection
      • Zwickau
    M Adelt collection
    Frenzel, A. (1874): Mineralogisches Lexicon für das Königreich Sachsen, Leipzig.
    • Schleswig-Holstein
      • Brunsbüttel
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Eckernförde
        • Eckernförde Bay
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Fehmarn Island
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Lübeck
        • Travemünde
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Oldenburg
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Plön
        • Bösdorf - Bad Malente area
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
      • Sylt Island
        • Braderup
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    A. Wittern: "Mineralfundorte in Deutschland", Schweizerbart (Stuttgart), 2001
    • Thuringia
      • Bad Lobenstein
    Wittern: "Mineralfundorte in Deutschland", 2001
      • Harz
        • Hermannsacker
    Thomas Lühr collection
        • Nordhausen
          • Ilfeld
    Kay Urbigkeit
      • Thuringian Forest
        • Floh-Seligenthal
          • Nesselhof
    Kretschmann, G. (2011): Bilder im Achat: "Tierfiguren" vom Nesselhof in Thüringen. Lapis 36 (5), 25-27.
        • Friedrichroda
    No reference listed
    Rob Lavinsky
        • Gräfenroda
          • Bergmannskopf
    Knoll, H. (2009): Interessante Fundstellen bei Gräfenroda im Thüringer Wald. Mineralien-Welt 20 (2), 50-61.
        • Oberhof
    Wittern: "Mineralfundorte in Deutschland", 2001
        • Schmalkalden
          • Lautenbach valley
    No reference listed
    Greece
     
    • Crete Department (Kriti)
    Adam Stephens
    Hungary
     
    • Borsod-Abaúj-Zemplén Co.
      • Zemplén Mtns (Tokaj Mtns)
    Szakáll & Gatter: Hungarian Mineral Species, 1993
    Koch: Minerals of Hungary, 1985
        • Komlóska
    Szakáll & Jánosi: Minerals of Hungary, 1995
        • Megyaszó
    • Heves Co.
      • Mátra Mtns
    GEODA 2002
    Geoda
    Bulletin of the Hungarian Geological Society
    Mineral Species of Hungary, 2005
    Geoda, 2003
    Szakáll-Jánosi: Minerals of Hungary
    GEODA/1997
    India
     
    • Gujarat
      • Ahmedabad District
        • Ahmedabad
    Richard M. Pearl: "Minerals of India", Mineral Digest, vol. 2.
      • Bharuch District
        • Bharuch
    Fulljames, G. “A Visit. December, 1832, to the Carnelian Mines, situated in the Rajpeepta Hills, to the Eastward of Broach” Transactions, Bombay Geographical Society Vol. 2 p. 74
      • Zaghadia (Jhagadia)
    Richard M. Pearl: "Minerals of India", Mineral Digest, vol. 2.
    • Madhya Pradesh
      • Jabalpur Division
    [var: Onyx] Richard M. Pearl: "Minerals of India", Mineral Digest, vol. 2.
    • Maharashtra
      • Latur District
    Eur. Jour. Min. 13, no. 1(2001)
    Indonesia
     
    • Kalimantan Island (Borneo Island)
      • Kalimantan Selatan Province (South Kalimantan Province)
        • Riam Kanan
    Observed and acchived at the mine by P. Andresen, 1992.
    Iran
    [var: Agate-Jasper] http://iranian-agates.freeservers.com/
    • Esfahan Province (Isfahan Province; Aspadana Province)
      • Nain County (Nayin County)
        • Anarak District
    Javad Amiri collection
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498; Maziar Nazari (2005) The Khur Agate Field, Central Iran. Symposium on Agate and Cryptocrystalline Quartz, September 10-13, 2005, Golden, Colorado. Program and Abstracts, pp 36-52.
    Isle of Man
     
    • Port Erin
      • Bradda Head
    BMS Database
    BMS Database
    Italy
     
    • Sardinia
      • Oristano Province
    [var: Agate-Jasper] - Conti-Vecchi, G. & Stara, P.(1991): Minerali della Sardegna, Della Torre Edizioni, Cagliari, 276 pp.
    • Sicily
      • Ragusa Province
        • Acate
    [Clark, 1993 - "Hey's Mineral Index, 3rd Edition"]
    • Trentino-Alto Adige
      • Bolzano Province (South Tyrol)
        • Adige Valley (Etsch Valley)
          • Terlano (Terlan)
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
        • Isarco Valley (Eisack Valley)
          • Funes Valley (Villnöss Valley)
            • Funes (Villnöß)
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
      • Trento Province
        • Fassa Valley
          • Buffaure Group
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
          • Duron Valley
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    Exel, R. (1987): Guida mineralogica del Trentino e del Sudtirolo. Athesia, Bolzano, 204 pp.
    • Tuscany
      • Pisa Province
        • Monteverdi Marittimo
          • Canneto
    Nannoni, R., Capperi, M., 1989. Miniere e minerali della Val di Cecina. Gruppo Mineralogico Cecinese. Tip. Grafiche Favillini, Livorno.
    Nannoni, R., Capperi, M., 1989. Miniere e minerali della Val di Cecina. Gruppo Mineralogico Cecinese. Tip. Grafiche Favillini, Livorno.
    • Veneto
      • Vicenza Province
        • Astico Valley
    Boscardin M. - Violati Tescari O. - Comune di Montecchio Maggiore (VI) - Museo Civico "G.Zannato" 1996 pp.47,53
    Boscardin,M. & Violati Tescari,O. (1996):Gemme del Vicentino, Comune di Montecchio Maggiore & Museo Civico " G. Zannato",Ed.,46-52
        • Recoaro Terme
    Boscardin M.- De Zen L.- Zordan A. I Minerali della Val Leogra e della Val D' Astico Cassa Rurale Artigiana " Monte Magre' " Schio -(Vicenza) 1989 pp. 56-57
          • Spizt Mt.
            • Ricchelere Valley
    Boscardin M. Violati Tescari o.- Gemme del Vicentino - Museo Civico "G.Zannato" Montecchio Maggiore (Vicenza) 1996 pp. 46, 50, 69.
        • Santorso
    http://www.tron.vi.it/minerali/index.html; Passaglia E., Luppi D., Boscardin M. & Zordan A. (2010). Stilbite e ferrierite del Vicentino. Riv. Mineral. Ital., 3/2010, 152-164.
        • Schio
          • Bosco di Tretto
            • Contrada Greselini
    Boscardin M., Violati tescari O. - Gemme del Vicentino - Montecchio Maggiore - Museo Civico "G.Zannato " 1996 pp.54. Personaly found by Mr. Gianfranco Capolupi
        • Valdagno
          • Campotamaso
    Gianfranco Capolupi
    Jamaica
    Lapidary Journal 24(11):1476
    Japan
     
    • Hokkaido
      • Oshima peninsula
        • Hiyama Subprefecture
    Ryoichi SADANAGA and Michiaki BUNNO (1974) THE WAKABAYASHI MINERAL COLLECTION Bulletin No. 7 The University Museum, The University of Tokyo
    Alfredo Petrov collection
      • Shiribeshi Province
        • Shakotan peninsula
    Alfredo Petrov collection
    • Honshu Island
      • Chubu Region
        • Ishikawa Prefecture
          • Noto Peninsula
            • Fugeshi
    Chishitsu Chousajo (1902)
        • Niigata Prefecture
          • Itoigawa City
    Fossa Magna Museum specimens (Itoigawa, Japan)
        • Shizuoka Prefecture
          • Kawazu
    Alfredo Petrov, field collected specimens
    Alfredo Petrov collection
          • Nishiizu
    Alfredo Petrov, field trip observations, December 2010
        • Toyama Prefecture
    Chishitsu Chousajo (1902)
      • Chugoku region
        • Shimane Prefecture
    Chishitsu Chousajo (1902)
      • Kanto Region
        • Ibaraki Prefecture
          • Ohmiya
    (Special exhibition organized by Masutomi Museum at Osaka show, April-May 2006)
      • Tohoku Region
        • Aomori Prefecture
          • Imabetsu-machi
    Masutomi Museum specimen (Kyoto)
    • Kyushu Region
      • Nagasaki Prefecture
    Alfredo Petrov collection
    Kazakhstan
     
    • Aktobe Province (Aqtöbe Oblysy; Aktubinskaya Oblast')
    Igor Savin data
    • Eastern Kazakhstan Province (Shyghys Qazaqstan Oblysy; Vostochno-Kazakhstanskaya Oblast')
    www.pegmatite.ru
    • Kostanay Province (Qostanay Oblysy; Kostanai Oblast')
    Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
    Kenya
     
    • Rift Valley Province
    [var: Blue Lace Agate]
    Lesotho
     
    Herman Du Plessis specimens.
    Madagascar
    Mark Rheinberger photo and specimen
    • Fianarantsoa Province
      • Atsimo-Atsinanana Region
    [var: Onyx] Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
    • Mahajanga Province (Majunga)
      • Boeny Region
    Marketa Tumova collection
      • Sofia Region
    Natural History Museum Vienna collection
    Mark Rheinberger photo and specimen
    Mexico
     
      • Mun. de Ahumada
        • Ejido Benito Juarez
    Zenz, Johann; Agates, pg.430-438
    Zenz, Johann; Agates, pg. 463-467; Zenz, Johann; Agates, pg. 463-467
        • Estacion Ojo Laguna
    [var: Laguna Agate] Mineralogical Record (2008): 39(6): 69-88.
    [var: Laguna Agate] Mineral Record (208) 39:6 pp69-88
    [var: Laguna Agate] Mineralogical Record 39:6 pp69-88
    [var: Laguna Agate] Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498; [www.minerals.net]
    Zenz, Johann; Agates, pg: 443-461
    [var: Fortification Agate]
        • Medanos Dune Field
    Zenz, Johann; Agates, pg. 398-403
        • Sierra del Gallego
    Zenz, Johann; Agates, pg419-429
      • Mun. de Aldama
    Karl Volkman
      • Mun. de Guazapares
        • Guazapares
    Collection of Paul Brandes based on label from Dwarves Earth Treasures
      • Mun. de Manuel Benavides
        • San Carlos
    Mat Dillon, personal communication, Rock Currier
    • San Luis Potosí
    Alfredo Petrov specimen.
    Mongolia
    Christian Bracke Collection.
    • Dornogovi Aimag
      • Gobi Desert
    Pavel M. Kartashov data
    Morocco
     
    • Meknès-Tafilalet Region
      • Khénifra Province
    Albert Russ
        • Midelt
          • Upper Moulouya lead district
    Amir Akhavan Collection
    • Souss-Massa-Draâ Region
      • Ouarzazate Province
    https://sites.google.com/site/mineralienmuseumguntersblum/bildergalerien/achate/afrika/marokko/agouim
    Mozambique
     
    • Maputo Province
    Martins da Pedra collection & photo
    • Zambezia Province
    Rui Nunes collection
    Namibia
     
    • Karas Region
      • Karasburg District
        • Ysterputs Farm 254
    [var: Blue Lace Agate] http://www.idexonline.com/portal_FullMazalUbracha.asp?id=27923
    New Zealand
     
    • North Island
      • Waikato
        • Taupo
    Econ Geol (1987)82:1109-1129
    • South Island
      • Canterbury
    Rough Country minerals specimens
        • Banks peninsula
    NZ Gemstones J Thornton
      • Marlborough
    J. Thornton. Zeolites and other minerals on Middlehurst Station. Essence of Microscope (NZ)
    Norway
     
    • Akershus
      • Bærum (Baerum)
    Knut Eldjarn collection & photo
    • Vestfold
      • Horten
        • Borre
          • Falkensten
    Larsen, K. E. & Larsen, S. (2005): Mineralforekomster på Vestfold lavaplatå. Del 2: I B1-nivåets basalter. Norsk Bergverksmuseum skrift 30, 41-57
    Panama
    [var: Eye Agate]  
    Papua New Guinea
     
    • Central Province
    http://aufa.tripod.com/geology/port_moresby.html.
    Paraguay
     
    • Central
      • Asuncion
    Alfredo Petrov field observations, 1989.
    Peru
     
    • Arequipa Department
      • Camaná Province
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
      • Caylloma Province
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    • Ayacucho Department
      • Lucanas Province
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    • Cajamarca Department
      • Chota
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    • Huancavelica Department
      • Huancavelica Province
        • Ascencion District
          • Yauricocha Parish
    J.Hyrsl (2012) Gemstones of Peru, p. 40
    • La Libertad Department
      • Otuzco Province
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    • Lima Department
      • Huarochiri Province
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    • Pasco department
      • Pasco province
    Petersen, G.G. (1970) Minería y metalurgía en el antiguo Peru. Arqueologicas, 12 140pp. (Museo Nacional de Antropologia y Arqueologia, Lima)
    Poland
     
    Dawid Godziewski; Dawid Godziewski
    Dawid Godziewski
      • Kaczawskie Mts
    Knut Edvard Larsen- Observed in field during Field Trip -1 st Mindat.org conference july 2011
    David Godziewski
    Observed in field during 1 Mindat.org conference, Fieldtrip 13.07.2011
    Found by students University of Wroclaw per Dagmara Lesiow.
    Praszkier, T., Bogdanski, J. & Siuda, R. (2011): Agates from Płóczki Górne, Lower Silesia, Poland. Warszawa 2011,Published by Spirifer Geological Society. 200p.
    David Godziewski
    Dawid Godziewski
    field work and sampling, examination of thin sections using the standard petrographic microscope, determination of mineral chemistry using the electron microprobe (EDS, WDS), cathodoluminescence observations (CL) and X-ray diffraction determinations (XRD)
      • Kłodzko District
    Dawid Godziewski
    Dawid Godziewski
    David Godziewski
    J. Witkowski
    Dawid Godziewski
    • Małopolskie
      • Chrzanów District
        • Alwernia commune
    Eligiusz Szełęg private collection
      • Kraków District
        • Krzeszowice Community
    Eligiusz Szełęg collection
    • Opolskie
      • Nysa District
    David Godziewski
    Portugal
     
    • Lisbon District
    Museu Geológico de Lisboa collection
    António Manuel Ináçio Martins.
      • Sintra
    [var: Sardonyx] Rui Nunes collection
    • Setúbal District
    Martins de Praeda
    Romania
     
    • Cluj Co.
    Ferenc Kristály (2006) Zeolites from Copaceni, Romania. GEODA,XVI/2, 34-36
    • Hunedoara Co.
      • Deva
    Carpathian Journal of Earth and Environmental Sciences, October 2010, Vol. 5, No. 2, p. 89 - 99
    Primics, G. (1886): Das Vorkommen der derben Quarzvarietäten bei Tekerő. Földtani Közlöny, 16, 347-353.
    • Maramureș Co.
      • Șișești Commune
        • Dănești village
    Marinel Kovacs, Alexandrina Fülöp, 2003, Neogene volcanism in Gutâi Mts., (Eastern Carpathians). A Review. Studia Universitatis, Babeș-Bolyai, Geologia, vol.48, 2003, p.3-16
        • Șurdești village
    Jude Radu (2010). An overview of the Oaș and Gutâi Neogene Metallogenetic District. Romanian Journal of Mineral Deposits, Mineral Resources of Carpathians area. 10th-12th September 2010, Baia Mare, Romania. vol 84, p.94-95
    Sándor Szakáll: Minerals of the Carpathians
    Russia
     
    • Central Region
      • Moscow Oblast' (Moskovskaya Oblast')
        • Golutvin
    Pavel M. Kartashov data; www.pegmatite.ru
    Pekin, A. (2011) Minerals of Moscow. Russian Journal of General Chemistry. Jun2011, Vol. 81 Issue 6, p1381-1391.
    Pekin, A. (2011) Minerals of Moscow. Russian Journal of General Chemistry. Jun2011, Vol. 81 Issue 6, p1381-1391.
    Pekin, A. (2011) Minerals of Moscow. Russian Journal of General Chemistry. Jun2011, Vol. 81 Issue 6, p1381-1391.
    http://www.pegmatite.ru/My_Collection/mn/agate_lg.jpg
    • Eastern-Siberian Region
      • Prebaikalia (Pribaikal'e)
        • Irkutskaya Oblast'
          • Lower Tunguska
    Igor Savin data
      • Sakha Republic (Saha Republic; Yakutia)
        • Polar Yakutia
          • Alazeya river basin
    Igor Savin data
      • Transbaikalia (Zabaykalye)
        • Buriatia Republic (Buryatia)
          • Tuldun river
    Igor Savin data
        • Chitinskaya Oblast'
    Igor Savin's data
    Igor Savin data
          • Zabaikal'skii district
    Igor Savin data
    Igor Savin data
    • Far-Eastern Region
      • Chukotskii Autonomous Okrug
    Расческин Е. "Сполохи Севера. Восточная Сибирь глазами геолога", Студия ГРАFO, 2004 г., стр. 128 - 134 (in Rus.)
    • Northern Region
      • Karelia Republic
        • Ladoga Region
          • Pitkyaranta District (Pitkäranta District)
            • Salmi
    Polekhovsky, Y.S., and Punin, Y.O. (2008): Geology of Ore Deposits 50(7), 642-646.
    • Urals Region
      • Southern Urals
        • Chelyabinsk Oblast'
          • Novoburino
    Igor Savin data
        • Kurganskaya Oblast'
          • Sinara river
            • Chernushka
    Igor Savin data
    • Western-Siberian Region
      • Kemerovskaya Oblast'
        • Tom' river
    Igor Savin data
    Slovakia
     
    • Banská Bystrica Region
    Ďuďa R.,Kotuľak P., Káňa R., 1993: Bergbau und Mineralien von Banská Štiavnica (Schemnitz), Slowakei. Emser Hefte, 14, 3, 1-70, Haltern
      • Brezno Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
        • Mýto pod Ďumbierom
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
      • Žiar nad Hronom Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    - Ďuďa R., 1993: Die mineralien der Gold und Silber - Lagersttäte von Kremnitz (Kremnica) in der Slowakei. Mineralien Welt,5, 20-32.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Bratislava Region
      • Malacky Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Košice Region
      • Rožňava Co.
        • Dobšiná (Dobschau; Topschau)
    Ozdín D. & Števko M., 2010: Unikátny výskyt achátov v serpentinizovaných peridotitoch v Dobšinej. Minerál, 18, 4, 331-335.
      • Trebišov Co.
    Kaličiak, M., Ďuďa, R., 1996: Geolgický vývoj, stavba a metalogenéza neovulkanitov na Východnom Slovensku. Manuskript, Archív Geofond, Bratislava, 83p
    Pauliš P., Ďuďa R., 2002: Nejzajimavejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 134p.
    Ozdín D., Števko M., Bačo P., Tuček P. (2011): Súčasný stav a nové poznatky o výskytoch ametystu na Slovensku. Minerál, 19, 6, 517-534. (in Slovak)
    • Prešov Region
      • Poprad Co.
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
        • Poprad
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    • Trenčín Region
      • Prievidza Co.
        • Handlová
    Koděra a kol., Topografická mineralógia Slovenska
    • Trnava Region
      • Trnava Co.
        • Smolenice
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590
    • Žilina Region
      • Liptovský Mikuláš Co.
    S.Šimko
    Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    Koděra M., Andrusovová-Vlčeková G., Belešová O., Briatková D., Dávidová Š., Fejdiová V., Hurai V., Chovan M., Nelišerová E., Ženiš P., 1986-1990: Topografická mineralógia Slovenska. I-III. Veda, Bratislava, 1592 p. (in Slovak)
    Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
    South Africa
    Cairncross, B. and Dixon, R., (1995), Minerals of South Africa.
    • Eastern Cape Province
    Minerals of South Africa
    • Free State Province
      • Xhariep District
    Minerals of South Africa
        • Jagersfontein
    Rocks & Min.: 21:130.
    • KwaZulu-Natal Province
      • Sisonke District
    Cairncross, B. and Dixon, R., (1995), Minerals of South Africa. The Geological Society of South Africa: 157
      • Umkhanyakude District
    Minerals of South Africa
    Minerals of South Africa
      • Uthungulu District
        • Empangeni
    Minerals of South Africa
    • North West Province
      • Dr Ruth Segomotsi Mompati District
    Cairncross, B. (2004) Rocks and Minerals of Southern Africa. ; Cairncross, B. (2004) Field Guide to Rocks and Minerals of Southern Africa.
    Martins da Pedra collection
    Spain
     
    • Andalusia
      • Almería
        • Níjar
    José Zendrera collection
    José Zendrera collection
    A. Arribas, F. Hernández, M. A. Fernández Périz, J. Gröbner, G. Leal (2005): Rodalquilar - El oro del capo del ágata. BOCAMINA 15, 12-88.
    • Canary Islands
      • Las Palmas Province
        • Gran Canaria (Grand Canary)
          • Agaete
            • Risco Faneque
    - Betz, V. (2009) Der Westen von Gran Canaria - ein Fundbericht, Lapis 34, Heft 9, 25-36
          • El Risco
    - Betz, V. (2009) Der Westen von Gran Canaria - ein Fundbericht, Lapis 34, Heft 9, 25-36
    • Valencian Community
      • Valencia
        • Buñol
    Casanova Honrubia, Juan Miguel & Canseco Caballé, Manuel, 2002, Minerales de la Comunidad Valenciana : 237 p. Ed. Caja de Ahorros del Mediterráneo. Alicante
    Sweden
     
    • Dalarna
      • Transtrand
    http://www2.orsa.se/turism/stenensrike/skyltar/22_svartviksb.pdf
    http://www2.orsa.se/turism/stenensrike/skyltar/22_svartviksb.pdf
    • Skåne
      • Lund
    sumarized list by T. Svensson
    Switzerland
     
    • Jura
      • Bassecourt
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 106.
      • Delémont (Delsberg)
        • Courfaivre
    Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf (Basel), p. 106.
    Tajikistan
     
    • Viloyati Sogd (Viloyati Sughd; Viloyati Khodzhent; Viloyati Leninabad)
      • Adrasman
    Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
    Turkey
     
    • Central Anatolia Region
      • Eskişehir Province
    Ferdinando Giovine specimen
    UK
     
    • England
      • Cornwall
        • Camborne - Redruth - St Day District
          • Illogan
            • Carn Brea and Tincroft United Mine
    Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
          • Redruth
    Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): "A Handbook to the Mineralogy of Cornwall and Devon", 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
        • Lizard Peninsula
          • Landewednack
    Majendie, A. (1818): Transactions of the Royal Geological Society of Cornwall 1, 32-37.
    Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.; Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 193; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.; Collins, J.H. (1892): A Handbook to the Mineralogy of Cornwall and Devon, 2nd ed., D. Bradford Barton Ltd. (Truro, UK), 108 pp.
        • Mount's Bay District
          • Breage
            • Godolphin Cross
    Paul De Bondt collection;
          • Porthleven
    Hogg, T. (1825): A Manual of Mineralogy. Polyblank Publishers (London), p. 195; Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
      • Cumbria
        • North and Western Region (Cumberland)
          • Keswick District
            • Keswick
    Mark J E - Notes on teh Geology of teh English Lake District Proceedings of teh Geologists' Assoc. Vol 16 No. 9, Aug 1900 p.455
    Ford, T., A. Sarjeant & M. Smith (1993): The minerals of the Peak district of Derbyshire. UK Jour. Mines & Minerals 13, 16-55.
        • Castleton
    Ford, T., A. Sarjeant & M. Smith (1993): The minerals of the Peak district of Derbyshire. UK Jour. Mines & Minerals 13, 16-55.
      • Devon
        • Tavistock District
          • Buckland Monachorum
    Bernie Millington Collection
      • Dorset
        • Lyme Regis
    No reference listed
      • Gloucestershire
    Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
        • Chipping Campden
    Hall, T.M. (1868): The Mineralogist's Directory. Edward Stanford (London), 168 pp.
      • Northumberland
        • Ingram
    Mineralogical Magazine 70(5), 485–498 (2006)
        • Upper Coquetdale
    Crawford, N. & Anderson, D. (2010) Scottish Agates, Lapidary Stone Publications Wiltshire.
      • Somerset
        • Banwell
    Paul Render
        • Mendip Hills
    Paul Render
          • Churchill
    Paul Render
        • Wells
    BMS Database; UKJMM Vol.29 p.11
      • South Gloucestershire (Bristol; Avon)
        • Almondsbury
    Paul Render
      • Staffordshire
    Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.
    • Northern Ireland
      • Co. Antrim
    Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.
    [var: Eye Agate]
      • Buchan Grampian (Aberdeenshire)
        • Stonehaven
          • Bruxie Hill
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
          • Kinneff
            • Grange Burn
    No reference listed
      • Buchan Grampian (Kincardineshire)
        • Arbuthnott
    No reference listed
    No reference listed
    No reference listed
      • Central Region (Stirlingshire)
    No reference listed
        • Kilsyth
    No reference listed
      • Fife
        • Cupar
    No reference listed
    No reference listed
    No reference listed
    No reference listed
      • Lothian (East Lothian)
    No reference listed
    No reference listed
      • North West Highlands (Inverness-shire)
    No reference listed
        • Isle of Eigg
    J.Ralph visual identification 2009.
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
        • Isle of Skye
          • Duirinish
    Phillips, W. (1823): An Elementary Introduction to the Knowledge of Mineralogy, 3rd ed. William Phillips (London), 535 pp.
    No reference listed
      • Scottish Borders (Peeblesshire)
    No reference listed
    No reference listed
      • Scottish Borders (Roxburghshire)
        • Hobkirk
    No reference listed
    No reference listed
      • Shetland Islands
        • Mainland
          • Northmaven
    No reference listed
      • Strathclyde (Argyllshire)
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
        • Kintyre
    No reference listed
      • Strathclyde (Ayrshire)
        • Ayr
    No reference listed
    [Specimen in the Natural History Museum, London]
    No reference listed
        • East Balgray
    No reference listed
        • Galston
    No reference listed
      • Tayside (Angus)
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
        • Monifieth
    UK Journal of Mines and Minerals, No. 14 p17-20
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
        • Montrose
    No reference listed
    No reference listed
    [Specimen in the Natural History Museum, London]
          • Usan
    [Specimen in the Natural History Museum, London]
    No reference listed
      • Tayside (Perthshire)
        • Cluny
    No reference listed
        • Inchture
          • Ballindean
            • Tinketop
    No reference listed
    No reference listed
    No reference listed
    [Specimen in the Natural History Museum, London]
    Ukraine
     
    • Crimea Oblast'
      • Crimea peninsula
        • Balaklava area
    Dobrovolskaya T.I., Polkanov Y.A. The Paleovolcano Fiolent. Giude (2004) - Simferopol, 2004, 19 p. (in Russ.) Oleg V. Zinchenko at al. (2008).The mineralogy of seasonal sulfates in the cape Fiolent - Zapiski Ukrainskogo Mineralogichnogo Tovaristva (Proceeding Ukrainian Mineralogical Society), 2008, #5, p. 75-83 (in Ukr.)
    Hervé Lethier (2014) APPRAISAL REPORT Karadag Strict Nature Reserve (Ukraine). Convention on the Conservation of European Wildlife and Natural Habitats
      • Simferopol area
        • Al'ma River valley
    - Dvoichenko P.A. The minerals of Crimea (1914) - Zapiski Krymskogo obshchestva estestvoispytatelei (Proceeding of the Crimea Society of Naturalistes), 1914, vol. 4, p. 1-208 (Rus.) - Popov S.P. Mineralogy of the Crimea (1938). - M.-L., AN SSSR, 1938, 352 p. (Rus.)
        • Petropavlovka Village area
    A. Tischenko. Minerals of the Crimea - World of stones, 1996, #9, p. 9-18
    Uruguay
     
    • Artigas Department
    Giulio Morteani, Y. Kostitsyn, C. Preinfalk, H. A. Gilg (2010) The genesis of the amethyst geodes at Artigas (Uruguay) and the paleohydrology of the Guaraní aquifer: structural, geochemical, oxygen, carbon, strontium isotope and fluid inclusion study. International Journal of Earth Sciences 99:927-947
    L.C. Duarte, L.A. Hartmann, M.A.Z. Vasconcellos, J.T.N. Medeiros, T. Theye (2009) Epigenetic formation of amethyst-bearing geodes from Los Catalanes gemological district, Artigas, Uruguay, southern Paraná Magmatic Province. Journal of Volcanology and Geothermal Research 184:427–43
    USA
     
    • Alabama
      • Blount Co.
    Mineralogy of Alabama Geol Surv Ala. Bull 120
      • Cherokee Co.
    Rocks & Min 70:5 pp 320-333
      • Clarke Co.
    Mineralogy of Alabama Geol Surv Ala. Bull 120
      • Greene Co.
    Mineralogy of Alabama Geol Surv Ala. Bull 120
    [var: Sardonyx] Gems and Minerals of America- Jay Ellis Ransom-1974
    Mineralogy of Alabama Geol Surv Ala. Bull 120
    Mineralogy of Alabama Geol Surv Ala. Bull 120
    Rocks & Min 70:5 pp 320-333
      • Madison Co.
    Mineralogy of Alabama Geol Surv Ala. Bull 120
    Rocks & Min 70:5 pp 320-333
      • Tuscaloosa Co.
    Mineralogy of Alabama Geol Surv Ala. Bull 120
    Mineralogy of Alabama Geol Surv Ala. Bull 120
    Rocks & Min 70:5 pp 320-333
    • Arizona
    Dimick, A. 1963 Southwest--Some of the Top Gem Locations of Eastern Arizona - Western New Mexico: Lapidary Journal, v. 17, no. 1, p. 156-163.
    Dennis Tryon
    Dennis Tryon collection; Trout, P. W. 1976 The desert field trip: Lapidary Journal, v. 30, no. 10, p. 2266, 2282.
      • Cochise Co.
        • Benson
    Van King
        • Dragoon Mts
    P Cristofono collection, 2007
          • Middle Pass District
            • Dragoon Pass
    P Cristofono collection, 2007
        • Sulphur Springs Valley
          • Pearce Hills
            • Pearce District
    Van King
      • Gila Co.
        • Payson District (Green Valley District)
          • Gibson Peak area
    MRDS database Dep. ID #10065037, MRDS ID #TC40027.
          • Payson
    Patrisha Renz
      • Graham Co.
        • Black Hills
    P Cristofono collection
        • Chaney Place
    Simpson, B., and Mitchell, J. R. 1989 Gem Trails of Arizona: Gem Guides Book company, Baldwin Park, California, 124 p.
        • Peloncillo Mts
          • Peloncillo District
    MRDS database Dep. ID #10023617, MRDS ID #I000805.
      • Greenlee Co.
    MRDS database Dep. ID #10234773, MAS ID #0040110142.
        • Peloncillo Mts
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Dimick, A. (1957), Arizona's Peloncillo agate, Gens & Minerals: 242: 24-27.
        • Shannon Mts
          • Copper Mountain District (Clifton-Morenci District)
    [var: Fortification Agate] Hunter, R. 1977 East of the sunshine but west of the moon: Lapidary Journal, v. 30, no. 12, p. 2834-2839
    Bearce, 2006. Minerals, Fossils and Fluorescents of Arizona
      • La Paz Co.
    [var: Agate-Jasper] Zeitner, J. C. 1964 Treasures of the Desert: Lapidary Journal, v. 17, no. 11, p. 1082-1089.
    Blair, 1992. Rockounding Arizona, p.149.
    [var: Fortification Agate]
        • Gila Bend area
    [var: Fortification Agate] Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Richards, R.A. (1956a), Arizona agate hunting, Rocks&Min.: 31: 279-280.
        • Hassayampa
    Simpson, B., and Mitchell, J. R. 1989 Gem Trails of Arizona: Gem Guides Book company, Baldwin Park, California, 124 p.
    Blair, 1992. Rockhounding Arizona, pp 135-136.
    Getsinger, F. 1961 Agate in Arizona: Lapidary Journal, v. 15, no. 3, p. 316-318.
      • Mohave Co.
    Blair, 1992. Rockhounding Arizona, p.68.
          • Oatman District (San Francisco District; Union Pass District)
    [var: Sardonyx] Blair, 1992. Rockhounding Arizona.
    Dennis Tryon collection
        • Hualapai (Hualpai) Mts
          • Boriana District
    Pabian R. Agate Lexicon UNL Database
    Pierce, H.W. (1969), Gem materials, in USGS, AZBur. Mines, and US Bur. of Reclamation, Mineral and Water resources of Arizona: AZ Bur. Mines Bull. 180 & USGS Bull. 871.
      • Navajo Co.
        • Holbrook District
    P Cristofono collection, 2008
    Mitchell, 2001: Gem Trails of Arizona, p.102
    Mitchell, 2001: Gem Trails of Arizona, p.104.
    P Cristofono collection, 2008
      • Pima Co.
        • Empire Mts
          • Empire District
    [var: Fortification Agate] Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348.
        • Tucson Mts
          • Amole District
            • Tucson
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Guild, F.N. (1905), Petrography of the Tucson Mountains, Amer. Jour. Sci.: 20: 313; Galbraith, F.W. & Brennan (1959), Minerals of AZ: 85.
    MRDS database Dep. ID file #10098118, MRDS ID #I000806.
      • Pinal Co.
        • Ironwood Forest National Monument
          • Wildcat Peak area
    MRDS database Dep. ID #10113383, MAS ID #0040210684.
      • Yavapai Co.
    MRDS database Dep. ID #10113266, MAS ID #0040250131.
        • Bradshaw Mts (Bradshaw Range)
          • Castle Creek District
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Richards, R.A. (1956a), Arizona Agate Hunting, Rocks & Min.: 31: 279-280.
        • Morgan City
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 85.
        • New River Station area
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Richards, R.A. (1956a), Arizona agate hunting, Rocks & Minerals: 31: 279-280.
    Mitchell, 2001: Gem Trails of Arizona, p.44.
    Gerry Blair, Rockhounding, Arizona, 2nd edition, pg 133
    Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 348; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 85.
      • Yuma Co.
    [var: Sardonyx] Blair, 1992. Rockhounding Arizona, p.157.
    • Arkansas
      • Cross Co.
        • Wynne
    http://www.gamineral.org/forrest-city-copperus-creek.htm
      • Garland Co.
        • Wilson Springs (Potash Sulfur Springs)
          • Union Carbide Mine
    R&M 70:3 pp 154-170
      • Pike Co.
    Rocks & Min.: 63:115.
    Arkansas Geological Commission
      • St. Francis Co.
        • Forrest City
    http://www.gamineral.org/forrest-city-crow-creek.htm
    • California
      • Alameda Co.
        • Berkeley
    [var: Iris Agate] Jones, F.T. (1952) Iris Agate. American Mineralogist: 37: 578-587; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 344.
      • Colusa Co.
        • Coast Ranges
          • Stonyford
    Johnson, H. C. 1971 Western Gem Hunters Atlas, 11th Edition: Cy Johnson & son, Susanville, Calif., 95 p.
      • Glenn Co.
        • Black Butte Lake (Black Butte Reservoir)
    Butler, 1995. Rockhounding California
      • Imperial Co.
    Pabian Agate Lexicon database
        • Chocolate Mts
          • Paymaster District
    Strong, M. F. 1971a Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, CA, 80 p.
            • Quartz Peak
    http://members.cox.net/mydog16/geodepage.html
        • Palo Verde Mts
          • Palo Verde District
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
            • Palo Verde
              • Twin Buttes
    Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345.
        • Plaster City
    Pabian Agate Lexicon database
        • Wiley Well
    Henry, D.J. (1952), Gem Trail Journal, 2nd. edition, Long Beach, Calif., 93 pp.: 72-79; Ransom, J.E. (1955) Arizona gem trails and the Colorado Desert. Mineralogist Publishing Co., Portland, Oregon: 18-22; Vargas, G. and Vargas, M. (1960) Wiley Well. Desert Magazine: 23(11): 32-34; Morton, P.K. (1977) Mines and mineral resources of Imperial County, California. California Division of Mines and Geology County Report 7, 104 pp.: 39-40; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345; Butler, 1995. Rockhounding California, p.37.
      • Inyo Co.
    Joseph Freillich photo
      • Kern Co.
        • California City
    Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345.
    Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345.; Strong, M. F. 1971a Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, CA, 80 p.
        • El Paso Mts
          • Last Chance Canyon
    Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345-346.
    [var: Agate-Jasper] Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 346.
          • Ricardo
    Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 346.; MacLachlan, D. 1950 The Greatest Collecting Area: Lapidary Journal, v. 4, no. 2, p. 96-100.; Berkholz, M. F. 1962b Map
    Johnson, H. C. 1971 Western Gem Hunters Atlas, 11th Edition: Cy Johnson & son, Susanville, Calif., 95 p.
        • Kramer District
    Chenard, G., and Chenard, D. 1962 Kern County Agate: Lapidary Journal, v. 16, no. 1, p. 106-107.
        • Mojave District
          • Mojave
    Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 346.
        • Rosamond Hills
          • Rosamond
    Troxel, Bennie Wyatt & P.K. Morton (1962), Mines and mineral resources of Kern County, California: California Division Mines & Geology County Report No. 1, 370 pp.: 91-92; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 345.
      • Lassen Co.
    Butler, 1995. Rockhounding California, p.158.
          • Willard Creek
    Butler (1995), Rockhounding California: 155.
    Robertson, D. 1970 Collecting in Tuledad County: Lapidary Journal, v. 24, no. 5, p. 737-739.
      • Los Angeles Co.
        • Antelope Valley
          • Agua Dulce
    Oakeshott, Gordon Blaisdell (1958) Geology and mineral deposits of San Fernando quadrangle, Los Angeles County, California. California Division of Mines Bulletin 172, 147 pp.: 128; Sharp, W.E. (1959) Minerals from Los Angeles County, California. Printed privately, Los Angeles, California: 47; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 347.
        • Lang
    Berkholz, M. F. 1962b Map
        • Mint Canyon [town]
    Schwartz in Rocks and Minerals, v. 19, no. 10, p. 311.
    Rocks & Minerals (1943): 18: 243.
        • Santa Catalina Island
    Irelan, William, Jr. (1890b), Tenth annual report of the State Mineralogist, California Mining Bureau Report 10, 983 pp.
        • Santa Monica Mts
          • Agoura Hills
    www.mineralsocal.org
    [var: Plume Agate] Housley, R. (2013), Eleven New Melanophlogite Pseudomorph Occurrences in Southern California, Mindat.org article 1772.
    Pelletier, 1962. Mineral Species & Localities of Marin County
      • Modoc Co.
        • Goose Lake
    Sterrett, Douglas Bovard (1909), Precious stones: Mineral Resources U.S., 1908, part 2: 807; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 317; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 347.
      • Riverside Co.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    Strong, M. F. 1971a Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, CA, 80 p.
    Strong, M. F. 1971a Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, CA, 80 p.
    Perry, L. E. 1961 Varied agate types and locations in California: Lapidary Journal, v. 15, no. 3, p. 308-314.
    Perry, L. 1984 Wiley Well revisited: Gems and Minerals, no. 565, p. 67-71.; Perry, L. E. 1961 Varied agate types and locations in California: Lapidary Journal, v. 15, no. 3, p. 308-314.
      • San Bernardino Co.
        • Alvord Mountain
    Bruce Ueno blog - www.mindat.org/blog.php/1416/loc-87962.html
        • Bristol Mts
          • Amboy
          • Afton
        • Fort Irwin
        • Opal Mountain
        • Signal District (Vontrigger District)
      • San Luis Obispo Co.
        • Santa Lucia Mts (Santa Lucia Range)
          • Cambria-Oceanic District
            • Cambria
    Joseph Freillich photo
    Krissa Klein collection; Butler, 1995. Rockhounding California, p.124. [as "moonstone"]
      • Santa Barbara Co.
        • Las Cruces
      • Santa Clara Co.
        • Morgan Hill
    Butler, 1995. Rockhounding California, p.135.
      • Siskiyou Co.
        • Klamath Mts
          • Cinnabar Camp
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Colorado
      • Bent Co.
    Minerals of Colorado (1997) E.B. Eckels
        • Ninaview Area
    Minerals of Colorado (1997) E.B. Eckels
      • Denver Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Douglas Co.
    Minerals of Colorado (1997) E.B. Eckels
      • El Paso Co.
    "Minerals of Colorado, updated & revised", p. 14, by Eckel, Edwin B., 1997
      • Elbert Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Fremont Co.
        • Canon City District
          • Canon City
    Pearl, 1958. Colorado Gem Trails & Mineral Guide
    "Minerals of Colorado, updated & revised", p. 15, by Eckel, Edwin B., 1997
    Minerals of Colorado (1997) E.B. Eckels
    [var: Onyx] Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    [var: Sardonyx] Minerals of Colorado (1997) E.B. Eckels
      • Jefferson Co.
        • Golden District
          • Golden
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • Larimer Co.
        • Rocky Mountain National Park
    Minerals of Colorado (1997) E.B. Eckels
      • Las Animas Co.
    [var: Fortification Agate] Minerals of Colorado (1997) E.B. Eckels
      • Mesa Co.
        • Fruita
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • Mineral Co.
        • Creede District
          • Amethyst Vein
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
        • San Juan Mts
          • Wolf Creek Pass
    Rocks & Minerals 79:5 pp316-324
    Minerals of Colorado (1997) Eckel, E. B.
        • Cross Mountain Area
    Maneotis: 2009
    Rocks and Minerals, Simon & Schuster 1978
        • Douglas Mountain District
    Minerals of Colorado (1997) E.B. Eckels
    Matthew Crystalman
    Minerals of Colorado (1997) E.B. Eckels
      • Otero Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Park Co.
        • Hartsel District
    Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
        • South Park
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) Eckels, E. B.
    Minerals of Colorado (1997) E.B. Eckels
      • Rio Blanco Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Rio Grande Co.
    Minerals of Colorado (1997) E.B. Eckels
      • Saguache Co.
    [var: Plume Agate] Rocks & Minerals (July, 2002)
    Minerals of Colorado (1997) E.B. Eckels
    [var: Onyx] Minerals of Colorado (1997) E.B. Eckels
    Minerals of Colorado (1997) E.B. Eckels
      • Weld Co.
    Pearl, 1958. Colorado Gem Trails & Mineral Guide
    [Fortification Agate var: Fairburn Agate] http://www.buenavistagemworks.com/agates/fairburn.htm
    • Connecticut
      • Fairfield Co.
    Januzzi, Ronald E. (1976): Mineral Localities of Connecticut and Southeastern New York State. The Mineralogical Press, Danbury.
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom-1974
    Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston
        • Woodbury
          • Orenaug Hills
    Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State
      • New Haven Co.
        • Cheshire
    Januzzi (1959); Januzzi (1976)
    Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston
          • Foxon
    J Zolan Collection
        • Madison
    Rocks & Min.: 70:381
        • North Branford
    shepard collection
      • New London Co.
        • Waterford
    John Burnham
    • Florida
    MacFall (1975) Gem Hunter's Guide
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Hillsborough Co.
        • Tampa
          • Tampa Bay
    Zeitner (1968) Appalachian Gem Trails; Ernest W. Bishop and Lawrence Dee Jr. (1961) Rocks and minerals of Florida. Florida Geological Survey Special Publication no. 8
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Madison Co.
    M.B. Smith, 1975, Withlacoochee River Agate: Lapidary Journal, v. 29, no. 8, p. 1590.
    Graves, Henry (1966) in The Agates of North America (San Diego: Lapidary Journal Inc.)
        • Ocala
    Rocks & Min.: 14:78.
    Rocks & Min.: 14:77-78.
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Pinellas Co.
        • Dunedin
    Gems and Minerals of America- Jay Ellis Ransom-1974
    • Georgia
    Gems and Minerals of America-Jay Ellis Ransom-1974
      • Bibb Co.
        • Macon
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
      • Burke Co.
        • Girard District
    Rocks & Min.: 64:187.
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
      • Chattooga Co.
        • Summerville
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Gems and Minerals of America- Jay Ellis Ransom-1974
    [var: Agate-Jasper] Gems and Minerals of America- Jay Ellis Ransom-1974
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Meriwether Co.
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Muscogee Co.
        • Columbus
      • Screven Co.
        • Millhaven
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    Gems and Minerals of America- Jay Ellis Ransom-1974
        • Thomaston
    Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    • Idaho
        • Hailey District
      • Butte Co.
        • Muldoon
    Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
      • Custer Co.
        • Bay Horse District
    Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    R&M 70:4 pp 242-263
    Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
    Dake, 1956. NW Gem Trails, 2nd ed.
      • Nez Perce Co.
      • Power Co.
    [var: Onyx] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Twin Falls Co.
    Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
      • Washington Co.
    Zenz, Johann; Agates, pg. 490-492
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    • Illinois
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Hancock Co.
    www.missourigeologists.org/Min-Loc2.pdf.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Henry Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Peoria Co.
        • Chillicothe
    [var: Lake Superior Agate] Rocks & Minerals (1955) 30:370
      • Putnam Co.
    [var: Lake Superior Agate] Rocks & Min.: 63:196
    • Indiana
    Gems and Minerals of America- Jay Ellis Ransom-1974
    • Iowa
      • Benton Co.
    Gems&Min. 374: 25-27.
    R&M 77:6 pp 404-413
    Jay ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
      • Butler Co.
    R&M 77:6 pp 404-413
    Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
      • Dubuque Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    R&M 77:6 pp 404-413
      • Floyd Co.
    R&M 77:6 pp 404-413
      • Hamilton Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Henry Co.
    R&M 77:6 pp 404-413
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Jackson Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Keokuk Co.
        • Harper
    R&M 77:6 pp 404-413
        • Ollie
    R&M 77:6 pp 404-413
      • Linn Co.
    R&M 77:6 pp 404-413
      • Marshall Co.
    Rocks&Min. 20:480.
    Jay Ellis Ransom,1974, Gems and Minerals of America
      • Muscatine Co.
        • Muscatine
    [var: Lake Superior Agate] R&M 77:6 pp 404-413
    [var: Lake Superior Agate] R&M 77:6 pp 404-413
    Jay ellis Ransom,1974, Gems and Minerals of America
    • Kansas
      • Barber Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Ransom, 1974. Gems and Minerals of America
      • Jefferson Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974,Gems and Minerals of America
    Anderson (1994) Kentucky Geol. Survey Ser. XI Spec. Pub 20
      • Estill Co.
    Rocks & Minerals 81:420-440
    Gems and Minerals of America -Jay Ellis Ransom-1974
      • Jackson Co.
    Rocks & Minerals 81:420-440
    Zeitner ,1968. Appalachian Mineral & Gem Trails
      • Madison Co.
    Alan Goldstein (2006) Kentucky Mineral Locality Index. Rocks & Minerals 81:420-440
      • Metcalfe Co.
    Alan Goldstein (2006) Kentucky Mineral Locality Index. Rocks & Minerals 81:420-440
      • Powell Co.
    Alan Goldstein (2006) Kentucky Mineral Locality Index. Rocks & Minerals 81:420-440
      • Rockcastle Co.
    Alan Goldstein (2006) Kentucky Mineral Locality Index. Rocks & Minerals 81:420-440
    • Louisiana
      • Bienville Parish
    Ref: Earth Treasures Vol 4, Allan W. Eckert, 1987
      • Catahoula Parish
    Earth Treasures Vol 4, Allan W. Eckert, 1987
      • De Soto Parish
    Earth Treasures Vol 4, Allan W. Eckert, 1987
    Earth Treasures Vol 4, Allan W. Eckert, 1987
      • East Baton Rouge Parish
    Earth Treasures Vol 4, Allan W. Eckert, 1987
      • East Feliciana Parish
    Earth Treasures Vol 4, Allan W. Eckert, 1987
    Earth Treasures Vol 4, Allan W. Eckert, 1987
    Earth Treasures Vol 4, Allan W. Eckert, 1987
    Earth Treasures Vol 4, Allan W. Eckert, 1987
      • Evangeline Parish
    Earth Treasures Vol 4, Allan W. Eckert, 1987
      • Ouachita Parish
    Jay Ellis Ransom,1974, Gems and Minerals of America
    MacFall (1975) Gem Hunter's Guide
    R&M 69:3 pp 156-162
    MacFall (1975) Gem Hunter's Guide
    • Maine
      • Washington Co.
        • Perry
    Morrill and Hinckley, 1959. Maine Mines and Minerals vol.2
    Morrill and Hinckley, 1959. Maine Mines and Minerals vol.2
    • Massachusetts
      • Berkshire Co.
    Gleba, 1978. Mass. Mineral & Fossil Localities
        • Hinsdale
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
        • North Adams
    No reference listed
        • Savoy
    Western Massachusetts Geologic Resource Inventory, 3rd Ed., Alan R. Plante (Privately Published), 1994
        • Williamstown
    No reference listed
      • Franklin Co.
        • Deerfield
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
      • Hampshire Co.
    Day, David T. (1888). Mineral Resources of the United States, Calendar Year 1887 (Washington, DC: USGS)
        • Easthampton
    Gleba, 1978. Massachusetts Mineral & Fossil Localities
      • Plymouth Co.
    Gleba, 1978: MA Mineral and Fossil Localities
    Hitchcock, Edward (1841). Final report on the geology of Massachusetts, p. 186.
    • Michigan
      • Alger Co.
    [var: Lake Superior Agate] Yalmer Primeau collection
    Mineralogy of Michigan (2004) Heinrich & Robinson
      • Chippewa Co.
    Mineralogy of Michigan (2004) Heinrich & Robinson
      • Gogebic Co.
        • Black River Harbor
    [var: Lake Superior Agate] Brian Cowger
      • Houghton Co.
        • Calumet Township
          • Calumet
            • Calumet & Hecla Mine
    Rosemeyer, T. 2011 New from the Keweenaw: Part 4 - Recent Mineral Finds in Michigan's Copper Country. Rocks & Minerals 86:205-227
        • Laurium
    Mineralogy of Michigan (2004) Heinrich & Robinson
    [var: Lake Superior Agate]
        • Wolverine
    Gems and Minerals of America-Jay Ellis Ransom-1974
    Rocks & Minerals (2007): 82: 276-297.; Rosemeyer, T. 2011 New from the Keweenaw: Part 4 - Recent Mineral Finds in Michigan's Copper Country. Rocks & Minerals 86:205-227
    [var: Lake Superior Agate] Earth Science v.19, no. 2, p.98. (1966)
    Mineralogy of Michigan (2004) Heinrich & Robinson
        • Ahmeek
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Paul Brandes field observation.
    Bornhorst & Rose (1994) Self-guided geological field trip to the Keweenaw Peninsula, Michigan. Institute Lake Superior Geology proceedings vol 40 part 2
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
        • Eagle River
    Mineralogy of Michigan (2004) Heinrich & Robinson
    [var: Lake Superior Agate] Brian Cowger
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Paul T. Brandes
    Paul T. Brandes
    [var: Lake Superior Agate] Paul T. Brandes
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Larry Maltby; Heinrich/Robinson (2004) Mineralogy of Michigan, see Quartz, Keweenaw Co.
    Van King specimen
      • Luce Co.
    Mineralogy of Michigan (2004) Heinrich & Robinson
      • Marquette Co.
        • Marquette iron range
          • Republic
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Mineralogy of Michigan (2004) Heinrich & Robinson
      • Ontonagon Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
        • Ontonagon
    Mineralogy of Michigan (2004) Heinrich & Robinson
        • White Pine
    Mineralogy of Michigan (2004) Heinrich & Robinson
    Gems and Minerals of America-Jay Ellis Ransom-1974
    www.dnr.state.mn.us/education/geology/digging/agate.html.
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Yalmer Primeau collection
        • Tofte
    [var: Lake Superior Agate] Brian Cowger
    Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
      • Lake Co.
    [var: Lake Superior Agate]
    [var: Lake Superior Agate]
    Ojakangas, R. W. and Matsch, C. L. (1982): Minnesota's Geology. U of Minnesota Press. 255p.
    Ojakangas, R. W. and Matsch, C. L. (1982): Minnesota's Geology. U of Minnesota Press. 255p
    Roadside Geology of Minnesota (2009) Ojakangas, R.W.
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    In personal collection - Bill Morgenstern
        • Duluth
    [var: Lake Superior Agate] Brian Cowger
      • Stearns Co.
    [var: Lake Superior Agate] Brian Cowger
    [var: Lake Superior Agate]
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    • Mississippi
    Gems and Minerals of America - Jay Ellis Ransom- 1974
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Lincoln Co.
        • Wesson (Copiah Co.)
    • Missouri
      • Andrews Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Fortification Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    [var: Lake Superior Agate] Jay Ellis Ransom,1974,Gems and Minerals of America
      • St. Louis Co.
    R&M 73:2 pp 98-117
    R&M 73:2 pp 98-117
    R&M 73:2 pp 98-117
    [var: Fortification Agate] Jay Ellis Ransom,1974,Gems and Minerals of America
    The Mineralogist, v. 24, no. 5
    R&M 73:2 pp 98-117
    R&M 73:2 pp 98-117
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
    R&M 73:2 pp 98-117
    • Montana
    Jay Ellis Ransom,1974,Gems and Minerals of America
        • Hardin
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
        • Pryor Mts
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
          • Bighorn River area
    Don Volkman, Derek Yost collections.
      • Deer Lodge Co.
    Donald Volkman personally collected
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
        • Ruby Range
    [var: Onyx] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    Jay Ellis Ransom,1974, Gems and Minerals of America
      • Richland Co.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
      • Rosebud Co.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
      • Treasure Co.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
      • Yellowstone Co.
    Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240; Chris Tucker and John Betts specimens.
    [var: Brecciated Agate]
      • Buffalo Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Cass Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    Jay Ellis Ransom,1974,Gems and Minerals of America
      • Cuming Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Dawson Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Cloud Agate]
    Zeitner (1956), Midwest Gem Trails
      • Dodge Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Gage Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Hall Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
      • Johnson Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Lincoln Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Madison Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Merrick Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Morrill Co.
    MacFall (1975) Gem Hunter's Guide
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Nance Co.
    MacFall (1975) Gem Hunter's Guide
      • Nemaha Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Otoe Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Pawnee Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    Jay Ellis Ranson,1974,Gems and Minerals of America
      • Richardson Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Saline Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Saunders Co.
    MacFall (1975) Gem Hunter's Guide
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    MacFall (1975) Gem Hunter's Guide
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Seward Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Sheridan Co.
    [Fortification Agate var: Fairburn Agate]
    [Fortification Agate var: Fairburn Agate]
      • Sioux Co.
    [var: Fortification Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    The Minerals and Gemstones of Nebraska CSD U Neb EC 2
      • Thurston Co.
    [var: Lake Superior Agate] The Minerals and Gemstones of Nebraska CSD U Neb EC 2
    • Nevada
      • Churchill Co.
        • Bell Mountain District
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Clark Co.
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Douglas Co.
        • Mount Siegel District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Elko Co.
        • Contact District
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Dolly Varden District
    Rocks & Min.: 20:16.
        • Ivanhoe District
    NBMG Spec. Pub. 31 Minerals of Nevada
    June Culp Zeitner (1996) Gem and Lapidary Materials: For Cutters, Collectors, and Jewelers, Geoscience Press
    [var: Eye Agate]
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Fish Lake Valley District
    NBMG Spec. Pub. 31 Minerals of Nevada
    Rocks&Min 36:35
        • Montezuma District
    NBMG Spec. Pub. 31 Minerals of Nevada
    Strong, M. F. (1971) Desert Gem Trails. A Field Guide to the Gems and Minerals of the Mojave and Colorado Deserts: Second Revised Edition, Gem Guides Book Co., Baldwin Park, CA, 80 p.
      • Eureka Co.
        • Pinto District
    NBMG Spec. Pub. 31 Minerals of Nevada
    [var: Fortification Agate] Kunz, 1892. Gems & Precious Stones of N. America, p.133.
    NBMG Spec Pub 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Lone Pine District
    USGS Bull 1538D
      • Lander Co.
        • Callaghan Ranch District
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Iowa Canyon District
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Lyon Co.
        • Fernley
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Mineral Co.
        • Broken Hills District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Nye Co.
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Union District
    NBMG Spec. Pub. 31 Minerals of Nevada
    Mineralogical Magazine, October 2006, Vol. 70(5), pp. 485–498
      • Pershing Co.
        • Star District
    NBMG Spec. Pub. 31 Minerals of Nevada
        • Velvet District
    NBMG Spec. Pub. 31 Minerals of Nevada
      • Washoe Co.
    NBMG Spec Pub 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    NBMG Spec. Pub. 31 Minerals of Nevada
    • New Jersey
    Gems and Minerals of America - Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom-1974
      • Essex Co.
        • Montclair Township
          • Upper Montclair
    Mins. of NYC & Its Environs, NY Min. Club (1931), Manchester, J.G.; Rocks & Min.: 18:332-333 (1943), Drake, H.Y.; 59-157-183 (1984), Peters, Joseph J.; NJ Geol. Survey Bull. #64 (1960), Mason, B.
        • West Orange Township
    Rocks & Min.: 10:43.
      • Hudson Co.
        • Secaucus
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 5, No. 1, Manchester, J.G. (1931): 91.
      • Mercer Co.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 77.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 88.
    [var: Sardonyx] Gems and Minerals of America -Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom -1974
        • Haledon
    Mason, B., 1960, Trap Rock Minerals of New Jersey.
        • Hawthorne
    Mason, B., 1960, Trap Rock Minerals of New Jersey
        • Little Falls Township
          • Great Notch
    Rocks & Min.:6:120, 11:184; 19:306-309 & 59:157-183, Peters, Joseph J.; 15:111-115 (1940), Sachs; 59:157-183, Peters, Joseph J. (1984); Mins. of NYC & Its Environs, NY Min. Club (1931), Manchester, J.G.; NJ Geol. Survey Bull. #64 (1960), Mason, B.
    John Betts specimens for sale
    Rocks & Min.:11:184.
        • Paterson
    Ref.: Mineral Collector: 2:138-139, Ehrman, A.H. (1895); Mineral Collector 15: 113-118, Papke, H. (1908).
        • Prospect Park
    Lapidary Jour.: 32:1700-1720, Mins. of the Watchungs, Part II, Vitali, G. (1978); NJ Geol. Survey Bull. #64, Trap Rock Mins. of NJ, Mason, B. (1960); Rocks & Min.: 59:157-183 (1984), Peters, J.J.; Mason, B., 1960, Trap Rock Minerals of New Jersey.
        • Woodland Park (West Paterson)
    Bradley D. Plotkin collection
    [var: Sardonyx] Gems and Minerals of America - Jay Ellis Ransom-1974
        • Bernards Township
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull., Vol. 3, No. 1, Manchester, J.G. (1931): 79.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 81.
        • Bridgewater Township
    Rocks & Min.: 24:27-29.
    A Quest for New Jersey Minerals (1978), Speiser, R.:14.
        • Watchung
    Manchester, J.G. (1931) The Minerals of New York City and Its Environs. New York Mineralogical Club Bulletin, 3:87.
      • Union Co.
        • Springfield Township
          • Springfield
    Rocks & Min.:13:75-79.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931):94.
    • New Mexico
      • Bernalillo Co.
    Minerals of New Mexico 3rd ed.
      • Catron Co.
    New Mexico Rocks & Minerals By Frank S. Kimbler, Robert J. Narsavage
        • San Augustin Plains
    Minerals of New Mexico 3rd ed.
      • Cibola Co.
    Minerals of New Mexico 3rd ed.
    Minerals of New Mexico 3rd ed.
      • Grant Co.
        • Alum Mountain District (Alum District)
          • Alum Mountain
    Minerals of New Mexico 3rd ed.
      • Hidalgo Co.
    [var: Fortification Agate] Minerals of New Mexico 3rd ed.
      • Luna Co.
    NMBGMR Open-file Report OF-459
    2009 New Mexico Mineral Symposium abstracts
        • Carrizalillo District
    Minerals of New Mexico 3rd ed.; 2009 New Mexico Mineral Symposium abstracts; NMBGMR Open-file Report OF-459
    2009 New Mexico Mineral Symposium abstracts; NMBGMR Open-file Report OF-459
    Minerals of New Mexico 3rd ed.
        • Little Florida Mountains District
    http://www.emnrd.state.nm.us/nmparks/PAGES/parks/rockh/rockh.htm; Twenty-First Annual New Mexico Mineral Symposium
      • Sandoval Co.
    Minerals of New Mexico 3rd ed.
      • Sierra Co.
    Minerals of New Mexico 3rd ed.
    Minerals of New Mexico 3rd ed.
    The Mineralogist, v. 9, no. 5, p. 181.
    The Minerals of New York City & Its Environs, New York Mineralogical Club Bull. Vol. 3, No. 1, Manchester, J.G. (1931): 84.
      • Jefferson Co.
        • Wilna Township
    Child, 1890. Gazetteer of Jefferson County, N. Y
      • Rockland Co.
        • Town of Ramapo
    Personally observed by Hershel Friedman, 2009
    • North Carolina
      • Cabarrus Co.
    Pratt,Joseph Hyde (1933) Gems and Gem Minerals of North Carolina: American Mineralogist,Vol.18,No.4,April,1933
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Gems and Minerals of America-Jay Ellis Ransom-1974
      • Cumberland Co.
        • Fayetteville
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Pratt,Joseph Hyde.,1933,Gems and Gem Minerals of North Carolina: American Mineralogist,Vol.18,No.4,April,1933
    Gems and Minerals of America-J ay Ellis Ransom-1974
    Pratt,Joseph Hyde.,1933,Gems and Gem Minerals of North Carolina: American Mineralogist,Vol.18,No.4,April,1933
    Gems and Minerals of America-Jay Ellis Ransom-1974
    Genth,F.A.,1891,The Minerals Of North Carolina;USGS Bulletion No.74
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Genth,F.A.,1891,The Minerals Of North Carolina:USGS Bulletion No.74
    Gems and Minerals of America-Jay Ellis Ransom-1974
    • North Dakota
      • Billings Co.
    Ransom, 1974. Gems and Minerals of America
    Jay Ellis Ransom,1974,Gems and Minerals of America
    Jay Ellis Ransom,1974,Gems and Minerals of America
    Zeitner, 1956. Midwest Gem Trails
    Jay Ellis Ransom,1974,Gems and Minerals of America
    Ransom, 1974. Gems and Minerals of America
    Rocks&Min. 20:533.
    Jay Ellis Ransom,1974,Gems and Minerals of America
    Jay Ellis Ransom,1974,Gems and Minerals of America
    • Ohio
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Gems and Minerals of America- Jay Ellis Ransom-1974
    • Oklahoma
    Jay Ellis Ransom,1974,Gems and Minerals of America
      • Cimarron Co.
        • Kenton
    http://snr.unl.edu/data/geologysoils/agates/AgateLexicon.asp?Name=B
    David Goza Collection
    Jay Ellis Ransom,1974,Gems and Minerals of America
    R&M 72:4 pp 252-264
    Rocks & Min. (1963) 38:581
    Jay Ellis Ransom,1974,Gems and Minerals of America
    David Goza
    Jay Ellis Ransom,1974,Gems and Minerals of America
    [var: Enhydro Agate]
      • Baker Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Crook Co.
      • Jackson Co.
        • Lost Creek Reservoir
    Phyllis Richardson
    Phyllis Richardson
      • Jefferson Co.
    Lap. Jour.: 27:540.
        • Madras
    Gem Trails of Oregon, James R. Mitchell 1998
    Rick Dalrymple Collection
      • Lane Co.
    various added photos
        • Lookout Point prospects
    [var: Onyx] Ariel S Wall
        • Trent
    Microprobe, Fall 2007
      • Lincoln Co.
    http://people.oregonstate.edu/~wilsolau/agates.html
      • Linn Co.
        • Chandler Mountain
    Ariel Duplant
        • Green Peter Summit
    [var: Snakeskin Agate] www.johnbetts-fineminerals.com
    Young, M. W. 1971 Then and now at famous Graveyard Point: Gems and Minerals, no. 407, p. 16-17. Idaho, Oregon, field trip; Graveyard Point in Idaho, agate mine in Oregon.
    Cran Cowan
        • Opalite District (McDermitt District)
    Geological Survey Research 1973, Geological Survey Professional Paper 850, page 13
    Dake, 1956. NW Gem Trails, 2nd ed.
      • Polk Co.
        • Dallas
    Mickey Marks Collection
      • Tillamook Co.
    Gem Trails of Oregon, James R. Mitchell 1998
      • Wasco Co.
    • Pennsylvania
      • York Co.
    Gems and Minerals of America- Jay Ellis Ransom-1974
    • Rhode Island
      • Bristol Co.
        • Bristol
    AmMin 12:427-436; Samuel Robinson (1825) A Catalogue of American Minerals, with their localities. Boston
      • Newport Co.
        • Portsmouth
    Museum of Natural History, Roger Williams Park, Providence, RI #G3770 6008.
      • Providence Co.
        • Cumberland
    Miller, C.E. (1971) Rhode Island Minerals and Their Locations, O. D. Hermes, Ed., University of Rhode Island, Kingston; Rocks & Minerals (1986) 61:264-275; Rocks & Minerals (1986): 61: 286-289
    No reference listed
    • South Carolina
    Gems and Minerals of America-Jay Ellis Ransom-1974
    • South Dakota
      • Custer Co.
        • Custer District
    [var: Onyx] SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    [Fortification Agate var: Fairburn Agate] [Clark, 1993 - "Hey's Mineral Index"]
    R&M 75:3 pp 156-169
    John Paul Gries (1996) Roadside geology of South Dakota
    Clark, Roger (2002) Fairburn Agate: Gem of South Dakota (Silverwind Agates, Publ., Appleton WI); pgs. 21,24,79 et al.
    [Fortification Agate var: Fairburn Agate] Clark, Roger (2002) Fairburn Agate: Gem of South Dakota (Silverwind Agates, Publ., Appleton WI); pgs. 21,24,79 et al.
      • Fall River Co.
    [Fortification Agate var: Fairburn Agate]
        • Minnekahta
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    [Fortification Agate var: Fairburn Agate] Lapidary Journal, v. 33, no. 6, p. 1410-1415
      • Jackson Co.
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
      • Meade Co.
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    Jay Ellis Ransom,1974, Gems and Minerals of America
      • Pennington Co.
    [Fortification Agate var: Fairburn Agate]
    [Fortification Agate var: Fairburn Agate]
    SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    [var: Plume Agate] SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
    Jay Ellis Ransom,1974, Gems and Minerals of America
    Jay Ellis Ransom,1974, Gems and Minerals of America
    • Tennessee
      • Anderson Co.
    Rock & Minerals Vol. 84 No. 4 Jul/Aug 2011
      • Bedford Co.
    Travis A. Paris (2011) Tennessee Mineral Locality Index. Rocks & Minerals 86:300-328
    Gems and Minerals of America-Jay Ellis Ransom-1974
      • Coffee Co.
    LapJourn. 16(11):1012
    Gems and Minerals of America - Jay Ellis Ransom-1974
    Gems and Minerals of America-Jay Ellis Ransom-1974
      • Shelby Co.
    Zeitner ,1968. Appalachian Mineral & Gem Trails ; Travis A. Paris (2011) Tennessee mineral locality index. Rocks & Minerals, 86, #4, 300-328.
    Gems and Minerals of America-Jay Ellis Ransom-1974
    Gems and Minerals of America- Jay Ellis Ransom-1974
    Zeitner ,1968. Appalachian Mineral & Gem Trails
      • White Co.
    Travis A. Paris (2011) Tennessee mineral locality index. Rocks & Minerals, 86, #4, 300-328.
    • Texas
      • Brewster Co.
    R&M 66:3 pp 196-224
    Agates from Alpine, Texas. Rocks and Minerals, v. 19, no. 8, p. 246.
    USGS Bull 585
    [var: Fortification Agate] www.austingemandmineral.org
    R&M 66:3 pp 196-224; http://www.omsinc.org/archives/Ore-cutts_Jan04.pdf
    R&M 66:3 pp 196-224
    Big Bend Country: Lapidary Journal, v. 16, no. 5, p. 527-530.
      • Donley Co.
        • Clarendon area
    Self-Collected In August 2005 by David Aldridge and Wayne Aldridge
      • Presidio Co.
    Wonderful west Texas: Lapidary Journal, v. 27, no. 10, p. 1534-1542.
    A. R. Ploudre, Lapidary Journal, v. 42, no. 2, p. 101
      • Reeves Co.
        • Balmorhea
    Lapidary Journal, v. 20, no. 1, p. 74-102.
    • Utah
      • Beaver Co.
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
        • San Francisco Mts
          • San Francisco District (Frisco District)
    Rick Dalrymple Collection
      • Davis Co.
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
      • Emery Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Green River (South West)
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    various added photos
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    Lapidary Journal 31:179.
    A Collector's Guide to Rock, Mineral, & Fossil Localities of Utah by James R. Wilson
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    [var: Onyx] UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Panguitch
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Sevier Plateau
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Grand Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    Bixby Catalog of Utah Minerals 1902
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    Van King
    Utah Rockhounding. http://www.xmission.com/~jbdaniel/grand.htm
      • Iron Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    A Collector's Guide to Rock, Mineral, & Fossil Localities of Utah by James R. Wilson
    Dave Crosby field collected specimens
      • Juab Co.
        • Drum Mts
    UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Dugway Pass area
    Dave Crosby photo and specimen
    James R Wilson (1995) A collector's guide to rock, mineral, & fossil localities of Utah. Utah Geological Survey Misc. Pub. 95-4
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    MacFall, 1951. Gem Hunter's Guide, 1st ed.
        • San Pitch Mts
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
          • Topaz Mountain
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Kane Co.
        • Orderville
    UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Millard Co.
    Rick Dalrymple Collection
      • Salt Lake Co.
    [var: Onyx] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
        • Salt Lake City
    Van King
      • Summit Co.
        • Woodland
          • Rileys Canyon
    Rick Dalrymple Collection
      • Tooele Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Dugway Range
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    [var: Onyx] UGMS Bull 117 Minerals and Mineral Localities of Utah
        • Silver Island Mts
        • Stansbury Mts
    [var: Onyx] UGMS Bull 117 Minerals and Mineral Localities of Utah
      • Uintah Co.
    Rick Dalrymple Collection
    Rick Dalrymple Collection
      • Utah Co.
        • Pelican Point Area
    [var: Onyx] UGMS Bull 117 Minerals and Mineral Localities of Utah
    [var: Onyx] UGMS Bull 117 Minerals and Mineral Localities of Utah
    [var: Onyx] UGMS Bull 117 Minerals and Mineral Localities of Utah
    [var: Onyx] U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
      • Washington Co.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    Rick Dalrymple Collection
      • Wayne Co.
        • Caineville Reef Area
    U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Vermont
      • Chittenden Co.
        • Colchester
    Nicolay & Stone (1967), Rocks & Minerals: A Guide For Collectors of the Eastern US
      • Windham Co.
        • Newfane
    Rocks & Min. Vol. 71, (1996)
    MacFall (1975) Gem Hunter's Guide
    • Virginia
    Minerals of Virginia 1990 by R. V. Dietrich
    Minerals of Virginia 1990 by R. V. Dietrich
      • Amelia Co.
        • Winterham
    Rocks & Min.: 8:143-144.; Arthur A. Pegau (1932) Pegmatite Deposits of Virginia. Virginia Geological Survey; Bulletin 33.
      • Arlington Co.
    Minerals of Virginia 1990 by R. V. Dietrich
    Minerals of Virginia 1990 by R. V. Dietrich
      • Chesterfield Co.
        • Richmond-Petersburg Toll Road
    Minerals of Virginia 1990 by R. V. Dietrich
    Gems and Minerals of America-Jay Ellis Ransom-1974
    Minerals of Virginia 1990 by R. V. Dietrich
      • Loudoun Co.
        • Gilberts Corner
    Minerals of Virginia 1990 by R. V. Dietrich
    Minerals of Virginia 1990 by R. V. Dietrich
    [var: Onyx] Minerals of Virginia 1990 by R. V. Dietrich
        • Dixie Caverns
    Minerals of Virginia 1990 by R. V. Dietrich
      • Pittsylvania Co.
        • Danville
    Minerals of Virginia 1990 by R. V. Dietrich
    Minerals of Virginia 1990 by R. V. Dietrich
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Warren Co.
    [var: Plume Agate] Minerals of Virginia 1990 by R. V. Dietrich
    [var: Plume Agate] Minerals of Virginia, 1990 by R. V. Dietrich
    • Washington
      • Chelan Co.
        • Blewett District (Peshastin District)
          • Negro Creek District
            • Negro Creek
    Glover, S. L. (1949). Origin and Occurrence of Gem Stones in Washington. State Print. Plant.
      • Clallam Co.
    Glover, S. L. (1949). Origin and Occurrence of Gem Stones in Washington. State Print. Plant.
      • Grant Co.
      • King Co.
        • Noble Knob
        • Renton
    Cannon, B. (1975): Minerals of Washington, p.64
      • Kittitas Co.
        • Cle Elum District
        • Swauk District
          • Liberty
    http://www.mineralcouncil.org/
      • Lewis Co.
        • Logan Hill
        • Toledo
      • Pierce Co.
      • Skagit Co.
    • West Virginia
    Gems and Minerals of America- Jay Ellis Ransom-1974
      • Pocahontas Co.
    MESA HEALTH AND SAFETY INSPECTION REPORT MAY 30, 1973
    • Wisconsin
    Gems and Minerals of America - Jay Ellis Ransom-1974
        • Ashland
    [var: Lake Superior Agate] Brian Cowger
      • Bayfield Co.
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
        • Bayfield
    [var: Lake Superior Agate] Brian Cowger
    [var: Lake Superior Agate] Gems and Minerals of America - Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom-1974
      • Douglas Co.
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
        • South Range
    Rocks & Min.: 65: 412-415.
    [var: Lake Superior Agate] Gems and Minerals of America - Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom-1974
    Gems and Minerals of America - Jay Ellis Ransom-1974
    [var: Lake Superior Agate] Gems and Minerals of America - Jay Ellis Ransom-1974
      • Pepin Co.
    [var: Lake Superior Agate] Gems and Minerals of America - Jay Ellis Ransom-1974
    [var: Lake Superior Agate] Gems and Minerals of America -Jay Ellis Ransom-1974
      • Sawyer Co.
    Gems and Minerals of America - Jay Ellis Ransom-1974
      • St. Croix Co.
    R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
    Gems and Minerals of America - Jay Ellis Ransom-1974
    • Wyoming
    Jay Ellis Ransom,1974, Gems and Minerals of America
      • Big Horn Co.
    Rocks & Minerals 76:383
    USGS Bull 624
      • Park Co.
    D. M. Schlegal (1959) Gem Stones of the United States. USGS Bulletin 1042G
      • Platte Co.
    Rocks & Minerals 76:389
    [var: Onyx] Rocks & Minerals 76:389
    USGS 1970 PP495-C Cenozoic geology of the Granite Mountains area, central Wyoming
    Van King
    Vietnam
     
    • Tai Ninh Province
    Pham Van Long, Gaston Giuliani, Virginie Garnier, Daniel Ohnenstetter (2004) Gemstones in Vietnam. The Australian Gemmologist Volume 22, Number 4, October–December 2004
    Yemen
    Mackay E. India: Technology. Decorated carnelian beads. Man 33: 1933:145
    • Ta'izz Governorate
    [var: Mocha Stone] [Clark, 1993 - "Hey's Mineral Index", p463]
    Zimbabwe
     
    • Matabeleland North
      • Hwange District
        • Deka
    Wolfgang Hampel, site visit June 2014
    Moore, A. (2013): The Geology of the Victoria Falls Area, Field Excursion Guidebook.- Geol. Soc. Of Zimbabwe, Annual Summer Symposium Victoria Falls, 28-30 November 2013, 15 pages + app.
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