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Picotite

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Formula:
(Fe,Mg)(Al,Cr)2O4
A variety of Hercynite

Mg- and Cr-bearing hercynite.

Classification of Picotite

Rejected
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Chemical Properties of Picotite

Formula:
(Fe,Mg)(Al,Cr)2O4
Essential elements:
All elements listed in formula:

Other Names for Picotite

Name in Other Languages:
German:Picotit
Simplified Chinese:铬尖晶石
Spanish:Picotita

Other Information

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

Internet Links for Picotite

Localities for Picotite

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 for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Algeria
 
  • Tamanghasset Province
    • Ahaggar Mtn (Hoggar Mtn)
      • In Ouzzal
M. Guiraud, J.R. Kienast, A. Rahmani : "Petrological study of high-temperature granulites from In Ouzal, Algeria : some implications on the phase relationships in the FMASTOCr system", Eur. J. Mineral. , 1996, 8, 1375-1390.
      • Laouni
J.P. Lorand and J.Y. Cottin, Bull. Minéral. , 1987, 110, pp. 373-378.
Antarctica
AmMin 36:361-367
  • Eastern Antarctica
    • Enderby Land
Eur. J. Mineral. , 1991, 3, pp. 367-386.
Austria
 
  • Carinthia
    • St Paul im Lavanttal
      • Kollnitz
J. E. Zirkl: Der Karinthin 43/44:175-188 (1961)
  • Lower Austria
    • Mostviertel
      • Dunkelstein Forest
        • Paudorf
          • Meidling
Eur. J. Mineral. , 1991, 3, pp. 323-342.
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
  • Salzburg
    • Hohe Tauern
      • Habach Valley
        • Nasenkopf
          • Leckbachgraben (Leckbachrinne)
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
    • Wolfgang Lake
A. Strasser: Die Minerale Salzburgs (1989)
  • Styria
    • Bad Gleichenberg
      • Kapfenstein
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
      • Klause
Aufschluss 1972(SB), 52-55
  • Upper Austria
    • Steyr-Land
- E.Reiter, in: Mineralogie (Oberösterreichs 1930 – 1982). Jahrbuch des oberösterreichischen Musealvereines 128 / 1, Sonderdruck, Linz 1983, Seite 333 - 341.
Brazil
 
  • Pernambuco
    • São Pedro e São Paulo archipelago
Washington, H.S. (1929) The American Mineralogist, 14, 369-372.
Bulgaria
 
  • Kardzhali Oblast (Kurdzhali; Kărdžali; Kurdjali)
    • Kirkovo Obshtina
[var: Chrompicotite] I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian).
Cambodia
Economic and Social Commission for Asia and the Pacific (1993) Atlas of Mineral Resources for the Escap Region Cambodia Vol 10 UN.
  • Krong Pailin Municipality (Pailin Municipality)
Eldridge M. Moores, Rhodes Whitmore Fairbridge (1997) Encyclopedia of European and Asian regional geology
  • Môndól Kiri Province (Mondulkiri Province)
Eldridge M. Moores, Rhodes Whitmore Fairbridge (1997) Encyclopedia of European and Asian regional geology
Chile
 
  • Antofagasta Region
    • El Loa Province
      • San Pedro volcano
C. Lemanski, Jr. (re-entry of lost Mindat data).
China
 
  • Qinghai Province
    • Golog Autonomous Prefecture (Guoluo Autonomous Prefecture)
      • Maqên Co.
        • Dur'ngoi Ophiolite
Zhang Wusheng and Chen Jie (1996): Qinghai Guotu Jinglue 5(1)
  • Shandong Province
    • Jiaodong Peninsula (Jiaodong Gold Province)
      • Weihai Prefecture
        • Rongcheng Co.
Geological Society of America Abstracts with Programs, Vol. 35, N°6, Sept. 2003, p. 634.
  • Xinjiang Autonomous Region
    • Yili Hasake Autonomous Prefecture (Ili Kazakh Autonomous Prefecture)
      • Tacheng Prefecture (Tarbaghatay Prefecture)
        • Junggar basin
C. Lemanski, Jr. (re-entry lost Mindat data).
        • Tuoli Co. (Toli Co.)
          • Sartohay (Sartokay; Sartuohai; Saertuohai)
Yushan Wang (1990): Journal of Mineralogy and Petrology 11(4), 66-74
  • Yunnan Province
    • Pu'er Prefecture
      • Mojiang Co.
Yuan Li (1998): Geology and Prospecting 34(5), 28-32
Cuba
 
  • Cienfuegos Province
Economic Geology; December 1958; v. 53; no. 8; p. 966-1003
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Benešov (Beneschau)
Kratochvíl, F.: Příspěvek k petrografii českého krystalinika. In Sborník geologického ústavu Československé republiky, 1947, sv. 14, s. 449-536.
    • Liberec Region
      • Jizerské Mtn (Iser Mtn)
Lukas Jankaj specimen
Scharm, B.: Přehled minerálů nalezených v oblasti uranových koncentrací v severočeské křídě. Bulletin mineralogicko-petrografického oddělení Národního muzea v Praze, 1995, roč. 3, s. 169-172.
    • Plzeň Region
      • Sušice (Schüttenhofen)
[var: Chrompicotite] Svoboda J., Novotný J.: Chrompicotit z otavských písků. Časopis pro mineralogii a geologii, 1960, 5, 2, 117-119.
  • Moravia (Mähren; Maehren)
    • South Moravia Region
      • Oslavany
        • Mohelno
Němec, F., 1937: Mineralogie, petrografie a geologie okolí Mohelna. Monografie hadce (monografie hadce). – In: Archiv Svazu pro ochranu přírody a domoviny v zemi Moravskslezské, Brno, 49-112.
Egypt
 
  • Red Sea
Eur. J. Mineral. , 1993, 5, pp. 1039-1056.
France
 
  • Auvergne
    • Haute-Loire
      • Allègre
        • Fix-Saint-Geneys
          • Vernassal
F.H. Forestier : "Les Péridotites Serpentinisées en France, Groupe I, Fascicule IV, Bassin du Haut Allier", BRGM, 1964
      • Auzon
        • Azérat
Bull. Minéral. , 1987, 110, pp. 359-371.
P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989
      • La Chaise-Dieu
        • Cistrières
F.H Forestier "Les Péridotites Serpentinisées en France, Fascicule IV, Massif Central Médian : Bassin du Haut Allier", BRGM, 1964
F.H Forestier "Les Péridotites Serpentinisées en France, Fascicule IV, Massif Central Médian : Bassin du Haut Allier", BRGM, 1964
      • Lavoûte-Chilhac
        • Saint-Cirgues
Bull. Minéral. , 1987, 110, pp. 359-371.
        • Saint-Ilpize
FORESTIER F. H., LASNIER B. (1969) – Découverte de niveaux d’amphibolites à pargasite, anorthite, corindon et saphirine dans les schistes cristallins de la vallée du Haut-Allier – Existence du faciès granulite dans la massif Central Français, Contr. Mineral. And Petrol. 23, pp. 194-235.
      • Lubilhac
P.G. Pélisson : "Etude Minéralogique et Métallogénique du District Filonien Polytype de Paulhaguet (Haute-Loire, Massif Central Français)", Doctorate Thesis, Orléans, France, 1989 ; F.H. Forestier : "Les Péridotites Serpentinisées de France", Fascicule IV, BRGM, 1964
      • Paulhaguet
        • Salzuit
      • Torsiac
        • Lanau
Bull. Minéral. , 1987, 110, pp. 359-371.
    • Puy-de-Dôme
      • Jumeaux
        • Champagnat-le-Jeune
Bull. Minéral. , 1987, 110, pp. 359-371.
  • Corsica
    • Haute-Corse
      • Bastia
        • Canari
H. Azais, J. Bouladon, P. Picot, P. Sainfeld : "Le Problème du Nickel dans les Serpentines de Corse", 1968, Bulletin du BRGM
        • Casamozza
        • Poggio-Mezzana
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
      • Corte
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
        • Cervione
        • Ghisoni
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
          • Matra
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
        • Piedicorte-di-Gaggio
H. Azias et al. : "Le problème du nickel dans les serpentinites de Corse", Extrait du Bulletin du BRGM, N°1, 1968
        • Piedicroce
          • Prato-di-Giovellina
        • Sermano
  • Midi-Pyrénées
    • Ariège
      • Massat
        • Le Port
          • Col d'Agnès
            • Etang de Lherz
J.L. Bodinier et al. , Bull. Minéral. , 1987, 110, pp. 345-358 / A.B. Woodland , Chemical Geology, 10 December 1996, vol. 134, no. 1, pp. 83-112(30) / J.P. Lorand, 1989, Lithos, 23, 281-299
      • Saint-Girons
        • Aulus-les-Bains
          • Col d'Agnès
            • La Freychinède
J.L. Bodinier et al. , Bull. Minéral. , 1987, 110, pp. 345-358 / A.B. Woodland , Chemical Geology, 10 December 1996, vol. 134, no. 1, pp. 83-112(30) / J.P. Lorand, 1989, Lithos, 23, 281-299
Germany
 
  • Baden-Württemberg
    • Kaiserstuhl
      • Sasbach
Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Hesse
    • Hofgeismar
S. Weiß: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
  • Lower Saxony
    • Göttingen
      • Güntersen
Wedepohl, K.H. (1954): Contributions to Mineralogy and Petrology 4, 217-232.
  • North Rhine-Westphalia
    • Siebengebirge
      • Bonn
Moreva-Perekalina, T.V. (1985): Ultramafic xenoliths from alkaline basalts of Finkenberg (Siebengebirge, West Germany), Scripta geologica, Vol. 78, Rijksmuseum van Geologie en Mineralogie, Leiden
      • Wachtberg
        • Niederbachem
Frechen, J., (1976): Siebengebirge am Rhein, Laacher Vulkangebiet, Maargebiet der Westeifel, Bornträger Berlin Stuttgart
  • Rhineland-Palatinate
    • Eifel
      • Daun
        • Brück-Dreis
Brauns, R., Die Mineralien der Niederrheinischen Vulkangebiete, Schweizerbart, Stuttgart, 1922
    • Westerwald
      • Hundsangen
Köster, H.M. (1960): Contributions to Mineralogy and Petrology 7, 71-75.
  • Saxony
    • Oberlausitz
      • Löbau
Rose, G. (1868): Verhandlungen der deutschen geologischen Gesellschaft, Zeitschrift der deutschen geologischen Gesellschaft, Vol. 20, 230-233
Hungary
 
  • Nógrád Co.
    • Karancs-Medves Mts
      • Bárna
C. Szabó et al. , Eur. J. Mineral. , 1996, 8, pp. 881-899.
      • Salgótarján
EGU / EGS - AGU - EUG Joint Assembly, Abstracts from the meeting held in Nice, France, 6 - 11 April 2003, abstract #748 "Silicate melt inclusions in olivine phenocrysts from Hegyestu (Bakony-Balaton Highland) and Pecsko alkaline basalts (Nograd-Gomor), Hungary"
  • Veszprém Co.
    • Balaton Uplands
      • Zánka
XVI ECROFI European Current Research On Fluid Inclusions, Porto 2001, Abstracts (Eds F. Noronha, A. Dória and A. Guedes), Faculdade de Ciências do Porto, Departamento de Geologia, Memória nº 7, pp. 237-240. Porto, 2001
Indonesia
 
  • Kalimantan Island (Borneo Island)
    • Kalimantan Selatan Province (South Kalimantan Province)
      • Batulicin
Lianshun Feng (1996): Geology and Prospecting 32(1), 22-26
Italy
 
  • Liguria
    • Genova Province
      • Mezzanego
Antofilli, Borgo, Palenzona, 1985. I nostri minerali. Geologia e mineralogia in Liguria. Edizioni Melita, La Spezia.
  • Piedmont
    • Torino Province
      • Casellette
Sanero, E. (1932): Sopra alcune rocce del M. Musinè (Valle di Susa). Per. Mineral., 3, 87-123.
  • Sicily
    • Siracusa Province
      • Melilli
S. Tonarini et al. , Eur. J. Mineral. , 1996, 8, pp. 1153-1173.
  • Tuscany
    • Florence Province
      • Montaione
        • Montignoso
[var: Chrompicotite] Manasse E. (1922) - Sulla composizione chimica della cromopicotite di Montignoso presso Iano. - Rend. Lav. Uff. Invenz. Ric., 1.
Japan
 
  • Chugoku Region
    • Shimane Prefecture
      • Oki Islands
        • Dohgo Island
Masaru Yamaguchi (1964) Petrogenic Significance of Ultrabasic Inclusions in Basaltic Rocks from Southwest Japan. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 163-219.
  • Hokkaido
    • Hidaka Province
      • Samani-gun
        • Samani-cho
M. Yamaguchi (1961) Mem. Fac. Sci., Kyushu University, Ser. D, Geology, 10, 2, 233-245.
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Tsuyama City
Masaru Yamaguchi (1964) Petrogenic Significance of Ultrabasic Inclusions in Basaltic Rocks from Southwest Japan. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 163-219.
Masaru Yamaguchi (1964) Petrogenic Significance of Ultrabasic Inclusions in Basaltic Rocks from Southwest Japan. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 163-219.
      • Shimane Prefecture
        • Hamada City
Masaru Yamaguchi (1964) Petrogenic Significance of Ultrabasic Inclusions in Basaltic Rocks from Southwest Japan. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 163-219.
  • Kyushu Region
    • Fukuoka Prefecture
      • Fukuoka City
Masaru Yamaguchi (1964) Petrogenic Significance of Ultrabasic Inclusions in Basaltic Rocks from Southwest Japan. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 163-219.
    • Nansei Archipelago
      • Kagoshima Prefecture
        • Tokara Archipelago
Tokiko Tiba (1989) Petrochemistry of the volcanic rocks from Kuchino-shima, Nakano-shima and Suwanose-jima, Tokara Islands. Memoirs of the National Science Museum (Tokyo), 22, 7-19.
    • Oita prefecture
      • Saganoseki
Katou, T. (1925) Journal of the Faculty of Science, Imperial University of Tokyo, 2: Geol., Min., Geog., Seism., Vol 1, part 2, 65-77.
Katou, T. (1925) Journal of the Faculty of Science, Imperial University of Tokyo, 2: Geol., Min., Geog., Seism., Vol 1, part 2, 65-77.
    • Saga Prefecture
      • Karatsu City (Higashi-Matsuura-gun)
Masaru Yamaguchi (1964) Petrogenic Significance of Ultrabasic Inclusions in Basaltic Rocks from Southwest Japan. Memoirs of the Faculty of Science, Kyushu University, Series D, Geology, 15, #1, 163-219.
Lesotho
 
Mathias, M., Siebert, J.C., and Rickwood, P.C. (1970): Contributions to Mineralogy and Petrology 26, 75-123.
New Zealand
 
  • North Island
    • Auckland
      • North Shore City
        • Lake Pupuke
E. J. Searle (1961) The petrology of the Auckland Basalts, New Zealand Journal of Geology and Geophysics, 4:2, 165-204,
E. J. Searle (1961) The petrology of the Auckland Basalts, New Zealand Journal of Geology and Geophysics, 4:2, 165-204,
  • South Island
    • Nelson
[var: Chrompicotite] Appendix to the 5th ed. of Dana's Mineralogy
    • Otago
      • Kakanui
Mason, B. (1968): Contributions to Mineralogy and Petrology 19, 316-327.
North Korea
 
  • Kangwon Province
    • Tongchon-gun
Hideo Tsuda (1969) Supplement to "Minerals of Korea".
Norway
 
  • Telemark
    • Nome
Brøgger, W.C. (1921) Die Eruptivgesteine des Kristianiagebietes. IV. Das Fengebiet in Telemark, Norwegen. Skrifter udgit av Videnskabsselskabet i Kristiania. I. Math. Nat. Klasse. No.9, p. 1-408 (p. 286); Griffin (1973): Lherzolite nodules from the Fen complex, Norway. Contributions to Mineralogy and Petrology. 38, 135-146.
Pacific Ocean
 
  • East Pacific Rise
R. Hekinian et al. , Bull. Minéral. , 1985, 108, pp. 691-698.
Poland
 
  • Mazowieckie
    • Warszawa
Manecki, 2001. in Geological Quarterly Vol. 45-03 (Polish Geological Institute)
Republic of Congo (Brazzaville)
 
  • Lékoumou Department
Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, pp. 470-474.
Romania
 
  • Harghita Co.
    • Ditrău (Ditró)
Szakáll, S. & Kristály, F., Eds. (2010): Mineralogy of Székelyland, Eastern Transylvania, Romania. Csík County Nature and Conservation Society, Miercurea-Ciuc, Romania, 321 pp.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
      • Daldyn-Alakit kimberlite field
        • Daldyn
M. Kamenetsky et al. , Geophysical Research Abstracts, Vol. 5, 2003.
Serbia
 
  • Raška District
    • Kopaonik
[var: Chrompicotite] Milojkovic, Aleksandar (1977): Some specific characteristics of waste materials from asbestos production at the Korlace mine. Tehnika (Belgrade, Yugoslavia) 32(7-8), RGM 20-RGM 24.
Slovakia
 
  • Banská Bystrica Region
    • Lučenec Co.
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Poltár Co.
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
  • Košice Region
    • Košice Co.
Koděra, M. et al., 1986 a 1990 : Topografická mineralógia Slovenska, diel 1- 3, Veda – Vydavateľstvo SAV, Bratislava, 1990, 1 – 1590k
    • Rožňava Co.
      • Dobšiná (Dobschau; Topschau)
[var: Chrompicotite] Pauliš P., Ďuďa R., 2002:Nejznámejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 136p
Pauliš P., Ďuďa R., 2002:Nejznámejší mineralogická nalezište Slovenska. Kuttna, Kutná Hora, 136p
[var: Chrompicotite] Háber,M., Hovorka,D., 1981: Ore mineralisation on the contact of an alpine type ultramafic body (Dankova, SGR Mnts). Geol.Zbor. – Geol.Carpath., 91 – 113
  • Žilina Region
    • Liptovský Mikuláš Co.
      • Východná
Koděra et all.,1990: Topografická mineralógia Slovenska, I-III, 1590p
South Africa
 
  • Free State Province
Minerals of South Africa
Spain
 
  • Andalusia
    • Málaga
      • Estepona
Romero Silva, JC (2003). Minerales y Rocas de la provincia de Málaga. Edited by Cedma. Malaga County Council 318 pg. 1 map
      • Ronda Massif
Romero Silva, JC (2003). Minerales y Rocas de la provincia de Málaga. Edited by Cedma. Malaga County Council 318 pg. 1 map
  • Autonomous City of Ceuta
J. Kornprobst: "Petrographical study of "acoustic basement" and associated breccia at site 121 - Western Alboran basin: a comparison with the Betico-Rifean basement." Deep Sea Drilling Project Initial Reports, volume 13.
  • Castile-La Mancha
    • Albacete
      • Hellín
        • Cancarix
E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
  • Murcia
    • Jumilla
      • La Celia
E. Salvioli-mariani et al. , Eur. J. Mineral. , 1996, 8, pp. 1027-1039.
Sweden
 
  • Hälsingland
    • Ljusdal
      • Los
No reference listed
  • Lappland
    • Arjeplog
Switzerland
 
  • Grischun (Grisons; Graubünden)
    • Albula Valley
      • Landwasser Valley
        • Davos
          • Wolfgang
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 382.
Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 170.
Taiwan
 
  • Taiwan Province
    • Hualien Co.
Zhengzhang Tao (1992): Journal of Mineralogy and Petrology 13(4), 21-27
Tanzania
 
  • Kilimanjaro Region
    • Lashaine volcano
Journal of Petrology, September 2002, vol. 43, no. 9, pp. 1749-1777(29)
C.T. Lee et al. , Contrib. Mineral. Petrol. , 2000, 139, pp. 470-484.
    • Mt Kilimanjaro
      • Longido
        • Muriatata hills
Yang, Xiao-wen; Zhang, Liang-ju; Jia, Zong-yong (2012): Mineral composition characters and prospect of Longido red corundum deposit in Tanzania. Guilin Ligong Daxue Xuebao 32, 173-178 (in Chinese).
UK
 
  • England
    • Derbyshire
      • Blackwell-in-the-Peak
Ford, T., A. Sarjeant & M. Smith (1993): The minerals of the Peak district of Derbyshire. UK Jour. Mines & Minerals 13, 16-55.
USA
 
  • Alaska
    • Yukon-Koyukuk Borough
      • Hot Springs District
U.S. Geological Survey, 2008, Alaska Resource Data File (ARDF): U.S. Geological Survey Open-File Report 2008-1225.
  • California
    • Lassen Co.
      • Cascade Range
        • Lassen Volcanic National Park
Diller, J.S. (1891), A late volcanic eruption in northern California and its peculiar lava: USGS Bulletin 79: 23; Finch, R.H. & C.A. Anderson (1930), The quartz-basalt eruptions of Cinder Cone, Lassen Volcanic National Park, California: University of California, Department of Geological Sciences Bulletin: 19: 245-273; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 345.
    • Placer Co.
Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 309; Schrader, Frank Charles, R.W. Stone & Samuel Sanford (1917), Useful minerals of the United States: 75; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 345.
    • San Luis Obispo Co.
      • Santa Lucia Mts (Santa Lucia Range)
        • Cerro Alto
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
    • Santa Barbara Co.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 346.
    • Siskiyou Co.
      • Cascade Range
Wadsworth, M.E. (1882), On picotite from Mt. Shasta, California. Boston Society of Natural History Proceedings: 21: 314-315; Hanks, Henry Garber (1884), Fourth report of the State Mineralogist: California Mining Bureau. Report 4, 410 pp.: 309; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 346; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 148.
    • Yolo Co.
      • Coast Ranges
        • Knoxville District
          • Knoxville area
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
  • Georgia
    • Towns Co.
      • Youngstown
Minerals of Georgia: Their properties and occurrences. Robert Cook GGWRD Bull 92
    • Troup Co.
Van Gosen, Bradley S. (2005) Reported historic asbestos mines, historic asbestos prospects, and natural asbestos occurrences in the eastern United States. USGS Open-File Report 2005-1189.
  • Idaho
    • Idaho Co.
      • Maggie Creek District
U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
  • Maine
    • Oxford Co.
Anderson, 1991. Maine Mineral Localities, 2nd ed.
  • Montana
    • Stillwater Co.
      • Stillwater Complex
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
  • New York
    • Tompkins Co.
Jensen (1978) Minerals of New York State,p.163
  • Virginia
Minerals of Virginia 1990 by R. V. Dietrich
Mineral and/or Locality  
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