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Xonotlite

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Formula:
Ca6(Si6O17)(OH)2
System:
Monoclinic
Colour:
White, grey, pale pink, ...
Hardness:
Member of:
Name:
Named in 1866 by Karl Friedrich August Rammelsberg after its discovery locality, Tetela de Xonotla, Mexico.
An ino-silicate mineral with double dreier chains. Several polytypes are known (Hejny & Armbruster, 2001): Ma2bc (space group P2/a, a = 17.032, b = 7.363, c = 7.012 Å, β = 90.36°), Ma2b2c (space group A2/a, a = 17.032, b = 7.363, c = 14.023, β = 90.36°), and M2a2bc (space group P-1 , a = 8.712, b = 7.363, c = 7.012 Å, α = 89.99° β = 90.36°, γ = 102.18°) .

Visit gemdat.org for gemological information about Xonotlite.

Classification of Xonotlite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
9.DG.35

9 : SILICATES (Germanates)
D : Inosilicates
G : Inosilicates with 3-periodic single and multiple chains
66.3.1.1

66 : INOSILICATES Double-Width,Unbranched Chains,(W=2)
3 : Amphiboles - Ca-Na subgroup
14.5.12

14 : Silicates not Containing Aluminum
5 : Silicates of Ca
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Type Occurrence of Xonotlite

Year of Discovery:
1866

Physical Properties of Xonotlite

Vitreous, Silky, Pearly
Diaphaneity (Transparency):
Transparent, Translucent
Colour:
White, grey, pale pink, colorless
Hardness (Mohs):

Crystallography of Xonotlite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Cell Parameters:
a = 17.032Å, b = 7.363Å, c = 7.012Å
β = 90.36°
Ratio:
a:b:c = 2.313 : 1 : 0.952
Unit Cell Volume:
V 879.33 ų (Calculated from Unit Cell)
Comment:
Space group P2/a (Ma2bc polytype).
X-Ray Powder Diffraction:
Image Loading

Radiation - Copper Kα
Data Set:
Data courtesy of RRUFF project at University of Arizona, used with permission.

Optical Data of Xonotlite

Type:
Biaxial (+)
RI values:
nα = 1.583 nβ = 1.585 nγ = 1.595
2V:
Calculated: 50°
Max Birefringence:
δ = 0.012
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
small

Chemical Properties of Xonotlite

Formula:
Ca6(Si6O17)(OH)2
Essential elements:
All elements listed in formula:
Common Impurities:
Fe,Mn,H2O

Relationship of Xonotlite to other Species

Member of:
Other Members of Group:
ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2O
Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2O
ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2O
9.DG.05BustamiteCaMn2+(Si2O6)
9.DG.05FerrobustamiteCaFe2+(Si2O6)
9.DG.05PectoliteNaCa2(HSi3O9)
9.DG.05SéranditeNa(Mn2+,Ca)2(HSi3O9)
9.DG.05WollastoniteCaSiO3
9.DG.05Wollastonite-1ACaSiO3
9.DG.07CascanditeCa(Sc,Fe3+)(HSi3O9)
9.DG.08Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)
9.DG.10Clinotobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
9.DG.10RiversideiteCa5(HSi3O9)2 · 2H2O
9.DG.10Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
9.DG.15FoshagiteCa4(Si3O9)(OH)2
9.DG.20JenniteCa9(Si3O9)2(OH)8 · 8H2O
9.DG.25ParaumbiteK3Zr2H(Si3O9)2 · nH2O
9.DG.25UmbiteK2(Zr,Ti)Si3O9 · H2O
9.DG.30SørenseniteNa4SnBe2Si6O16(OH)4
9.DG.40HillebranditeCa2(SiO3)(OH)2
9.DG.45ZoriteNa8(Ti,Nb)5(Si6O17)2(OH,O)5 · 14H2O
9.DG.45ChivruaiiteCa4(Ti,Nb)5(Si6O17)2(OH,O)5 · 13-14H2O
9.DG.50Haineaultite(Na,Ca)5Ca(Ti,Nb)5(Si6O17)2(OH,F)8 · 5H2O
9.DG.55EpididymiteNa2Be2Si6O15 · H2O
9.DG.60EudidymiteNa2Be2Si6O15 · H2O
9.DG.65ElpiditeNa2ZrSi6O15 · 3H2O
9.DG.70Fenaksite(K,Na)4(Fe,Mn)2(Si4O10)2(OH,F)
9.DG.70LitidioniteCuNaKSi4O10
9.DG.70ManaksiteKNaMnSi4O10
9.DG.75TinaksiteK2Na(Ca,Mn2+)2Ti[O|Si7O18(OH)]
9.DG.75TokkoiteK2Ca4Si7O17(O,OH,F)4
9.DG.75SenkevichiteCsKNaCa2Ti[O|Si7O18(OH)]
9.DG.80CanasiteK2Na4Ca5(Si12O30(OH,F)4
9.DG.80FluorcanasiteK3Na3Ca5Si12O30F4 · H2O
9.DG.85MiseriteK1.5-x(Ca,Y,REE)5(Si6O15)(Si2O7)(OH,F)2 · yH2O
9.DG.90FrankameniteK3Na3Ca5(Si12O30)(F,OH)4 · H2O
9.DG.92Charoite(K,Sr)15-16(Ca,Na)32[Si6O11(O,OH)6]2[Si12O18(O,OH)12]2[Si17O25(O,OH)18]2(OH,F)4 · ~3H2O
9.DG.95Yuksporite(K,Ba)NaCa2(Si,Ti)4O11(F,OH) · H2O
9.DG.97Eveslogite(Na,K,Ca,Sr,Ba)48 [(Ti,Nb,Mn,Fe2+)12Si48O144(OH)12](F,OH,Cl)14
14.5.1WollastoniteCaSiO3
14.5.2Wollastonite-7T
14.5.3Wollastonite-2MCaSiO3
14.5.4RankiniteCa3Si2O7
14.5.5KilchoaniteCa6(SiO4)(Si3O10)
14.5.6LarniteCa2SiO4
14.5.7BredigiteCa7Mg(SiO4)4
14.5.8HatruriteCa3(SiO4)O
14.5.9RosenhahniteHCa3[Si3O9(OH)]
14.5.10DellaiteCa6(Si2O7)(SiO4)(OH)2
14.5.11AfwilliteCa3(HSiO4)2 · 2H2O
14.5.13FoshagiteCa4(Si3O9)(OH)2
14.5.14HillebranditeCa2(SiO3)(OH)2
14.5.15JaffeiteCa6(Si2O7)(OH)6
14.5.16SuoluniteCa2(H2Si2O7) · H2O
14.5.17KillalaiteCa6.4(H0.6Si2O7)2(OH)2
14.5.18OkeniteCa10Si18O46 · 18H2O
14.5.19RiversideiteCa5(HSi3O9)2 · 2H2O
14.5.20TrabzoniteCa4(Si3O9)(OH)2
14.5.21GyroliteNaCa16Si23AlO60(OH)8 · 14H2O
14.5.22FoshallasiteCa3[Si2O7] · 3H2O(?)
14.5.23Tobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
14.5.24Clinotobermorite[Ca4Si6O17 · 2H2O]·(Ca·3H2O)
14.5.25NekoiteCa3Si6O15·7H2O
14.5.26Plombièrite[Ca4Si6O16(OH)2 · 2H2O]·(Ca·5H2O)
14.5.27JenniteCa9(Si3O9)2(OH)8 · 8H2O

Other Names for Xonotlite

Other Information

May fluoresce and phosphoresce violet in SW, MW, and LW ultraviolet light (Franklin, New Jersey).
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Xonotlite

Reference List:
Rammelsberg, Karl Friedrich August, Z. Deutsch. Geol. Ges. (1866): 18: 33.

Larsen, E.S. (1923), The identity of eakleite and xonotlite, American Mineralogist: 8: 181-182.

Taylor, H.F.W. (1953), The identity of jurupaite and xonotlite: Mineralogical Magazine: 30: 338-341.

Doklady Akademii Nauk SSSR: 104: 615-618 (in Russian).

Journal of the Mineral Society of Japan (1972): 10: 358.

Zeitschrift für Kristallographie (1981): 154: 271.

Hejny, C. and Armbruster, T. (2001): Polytypism in xonotlite Ca6Si6O17(OH)2. Z. Kristallogr. 216, 396-408.

Bernstein, S., Fehr, K. T. & Hochleitner, R. (2009): Crystal chemistry of Xonotlite Ca6Si6O17(OH)2. Part I: Determination of polytypes using X-Ray Powder Diffraction (XRPD). Neues Jahrbuch für Mineralogie - Abhandlungen, 186, 153-162.

Internet Links for Xonotlite

Specimens:
The following Xonotlite specimens are currently listed for sale on minfind.com.

Localities for Xonotlite

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.
Australia
 
  • Tasmania
    • Huon district
      • Weld river
Bottrill & Baker (in prep) Catalogue of minerals of Tasmania
  • Victoria
    • Rural City of Benalla
Aust.Jour. Earth Sci. 46:251 (1999)
  • Western Australia
    • Coolgardie Shire
      • Widgiemooltha
B. Grguric
    • Kalgoorlie-Boulder Shire
      • Woolibar Station
        • South Kal Mines (South Kalgoorlie Gold Mine; HBJ)
Sue Koepke collection; from Frank Radke
Bulgaria
 
  • Yambol Oblast
    • Bolyarovo Obshtina
I. Kostov, V. Breskovska, J. Mincheva-Stefanova, G. Kirov (1964): Minerals of Bulgaria. Sofia, Bulgaria, 540 pp. (in Bulgarian).
Canada
 
  • Newfoundland and Labrador
    • Newfoundland
      • Bay of Islands
        • Cox's Cove
Ray L. Frost, Mahen Mahendran, Keerthan Poologanathan, Yunfei Xi, Raman spectroscopic study of the mineral xonotlite Ca6Si6O17(OH)2—A component of plaster boards, Materials Research Bulletin (in press)
Traill, R. J. (1980) Catalog of Canadian Minerals: Revised 1980. Geological Survey of Canada Paper 80-18.
  • Ontario
    • Thunder Bay District
      • Blake Township
Traill, R. J. (1980) Catalog of Canadian Minerals: Revised 1980. Geological Survey of Canada Paper 80-18.
  • Québec
    • Estrie
      • Les Sources RCM
        • Asbestos
Grice, J.D. and Williams, R. (1979): Famous mineral localities: The Jeffrey Mine, Asbestos, Québec. Mineralogical Record, 10(2):69-80
    • Outaouais
      • Les Collines-de-l'Outaouais RCM
        • Chelsea
Geological Survey of Canada Miscellaneous Report 41
Czech Republic
 
  • Moravia (Mähren; Maehren)
    • Vysočina Region
      • Havlíčkův Brod (Německý Brod; Deutschbrod)
Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
Finland
 
  • Eastern Finland Region
Ilkka Mikkola collection, Identification by Dr Seppo Lahti
Germany
 
  • Hesse
    • Odenwald
      • Mühltal
        • Nieder-Beerbach
Greenland
 
  • Tunu Province (East Greenland)
    • Kangerlussuaq Firth
      • Kangerlussuaq complex
MinRec 16:485-494
Iceland
 
  • Vestmannaeyjar archipelago (Westman islands)
    • Surtsey Island
Jacobsson et al (1992) Encrustations from Lava Caves in Surtsey, Iceland. A Preliminary Report: Surtsey Research Progress Report X: 73-78 Reykjevik, Iceland.
Iraq
 
  • Qala-Diz (Qala-Dizeh; Qala-Diza)
    • Hero
Al-Hermezi, H. M., McKie, D., & Hall, A. J. (1986). Baghdadite, a new calcium zirconium silicate mineral from Iraq. Mineralogical Magazine, 50, 119-123.
Ireland
 
  • Co. Sligo
    • Killala Bay
Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, p. 506.
Israel
 
  • Negev
Gross, S. (1977): The Mineralogy of the Hatrurim Formation, Israel. Geological Survey of Israel, Bulletin no. 70, 80 pp.
Italy
 
  • Lombardy
    • Sondrio Province
      • Valtellina
        • Malenco Valley
          • Lanterna Valley
            • Lanzada
Bedognè, F. (2006) Xonotlite della Val Lanterna, Valmalenco (SO). Rivista Mineralogica Italiana, 30, 254-255.
  • Trentino-Alto Adige
    • Trento Province
      • Fiemme Valley
Demartin, F., Campostrini, I., Grisotto, M., & Grisotto, L. (2006). I Canzoccoli. Una località classica presso Predazzo, Val di Fiemme, Trento. Rivista Mineralogica Italiana, 30(3), 166-177.
  • Tuscany
    • Pisa Province
      • Castelnuovo Val di Cecina
Bonaccorsi E., Merlino S., Orlandi P.(1996): Breve nota sulla xonotlite di Monte Castelli. Atti Soc. tosc. Sci. nat., Mem., Serie A, 103.
  • Veneto
    • Padova Province
      • Euganei Hills
        • Faedo
Passaglia E. and Taglavini A. (1995): Erionite from Faedo, Colli Euganei, Italy. N.Jb.Miner.Mh.,4, pagg.185-191.
    • Vicenza Province
      • Altissimo
        • Del Tesoro Mt.
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Arsiero
        • Contrada Draghi
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Astico Valley
Collections Alessandro Mattiello and Padua University
        • Cogollo del Cengio
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Cornedo Vicentino
        • Spagnago
Lapis, 15 (12), 27-32+50.; Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Gambellara
        • S.Marco hill
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Laghi
Zordan, A., Boscardin, M., & Zorzi, F. (2008). Foshagite di Contrada Molini, Laghi (Vicenza). Rivista Mineralogica Italiana, 3/2008, 178-180.
      • Posina
        • Pasubio Massif
          • Punta della Lucche
Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
      • Tretto di Schio
        • Val Munari
          • Contrade Maglio-Pornaro
- Boscardin M.,Daleffe A.,Rocchetti I., Zordan A. (2011) " Minerali del Vicentino - Aggiornamenti, località e nuove determinazioni " Museo di Archeologia e Scienze Naturali “G. Zannato” – Montecchio Maggiore (Vicenza), pp.183
Japan
 
  • Honshu Island
    • Chubu Region
      • Niigata Prefecture
        • Itoigawa City
          • Ohmi
Alluvial cobbles in innumerable collections.
      • Shizuoka Prefecture
        • Amagi-Yugashima
Dr. Kameki Kinoshita collection (curated at Geological Survey of Japan)
    • Chugoku Region
      • Okayama Prefecture
        • Ihara City (Ibara City)
          • Higashi-Mihara
http://www.handbookofmineralogy.org/pdfs/xonotlite.pdf
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Mineralogical Journal Vol. 14 (1989) , No. 7 pp 299-302; Henmi, C., Kusachi, I., Kawahara, A., & Henmi, K. (1978). 7T wollastonite from Fuka, Okayama Prefecture. Mineralogical Journal, 9(3), 169-181.; Henmi, C., & Kusachi, I. (1992). Clinotobermorite, Ca5Si6 (O, OH) 18· 5H2O, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 56(3), 353-358.
            • Shitouyouze
Matsueda, H. (1983) Journal of the Mining College, Akita University, Ser. A, Mining Geology, 6, #3, 259-292.
    • Kinki Region
      • Hyogo Prefecture
        • Yabu City
          • Sekinomiya-machi
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
      • Mie Prefecture
        • Toba City
Ohe Rikosha specimens; Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
    • Tohoku Region
      • Fukushima Prefecture
Matsuyama, F. (2001)
  • Kyushu Region
    • Oita Prefecture
      • Bungo-Ohno City
        • Mie-cho-washidani
Uehara, S., et al (2014) MInerals from Kyushu and Yamaguchi. (Fukuoka Mineral Club, 355 pages)
  • Shikoku Island
    • Kochi Prefecture
      • Kochi City
        • Engyouji (Engyoji)
Yamada, S. (2004) Nihonsan-koubutsu Gojuon-hairetsu Sanchi-ichiranhyou (111 pp.)
        • Rendai
      • Konan City
Handbook of Mineralogy, (c) 2001.
Mexico
 
  • Hidalgo
    • Mun. de Pachuca
      • Pachuca de Soto (Pachuca)
Panczner(1987):399.
  • Puebla
    • Mun. de Tetela de Ocampo
      • Tetela de Ocampo (Tetela; Tetella de Ocampo)
Panczner(1987):399.
Panczner(1987):399.
Pancnzer(1987):399.
Panczner (1987): 399.
    • Mun. de Tetela del Oro
      • Tetela del Oro
Panczner(1987):399.
Rammelsberg C (1866) Ueber den Xonaltit, ein neues wasserhaltiges Kalksilikat, und den Bustamit aus Mexiko, Zeitschrift der Deutschen Geologischen Gesellschaft 18, 33-34; Dana 6:569; Panczner(1987):399.
New Zealand
 
  • North Island
    • Waikato
      • Piopio
O'Brien, J. P., & Rodgers, K. A. (1973). Xonotlite and rodingites from Wairere, New Zealand. Mineralogical Magazine, 39, 233-240.
  • South Island
    • Southland
Judy Rowe collection
Puerto Rico
 
AmMin 38:860
Romania
 
  • Caraş-Severin Co.
    • Banat Mts
Marincea, S., Dumitraş. D-G., Ghinet, C, Fransolet, A.-M., Hatert, F. & Rondeaux, M. (2011): Gehlenite from three occurrences of high-temperature skarns, Romania: new mineralogical data. Canadian Mineralogist. 49, 1001-1014
  • Hunedoara Co.
    • Hunedoara
Marincea, Ş., Bilal, E., Verkaeren, J., Pascal, M.-L., and Fonteilles, M. (2001) Superposed paragenesis in spurrite-, tilleyite- and gehlenite-bearing skarns from Cornet Hill, Apuseni Mountains, Romania. Canadian Mineralogist: 39: 1435-1453.; The Canadian Mineralogist Vol. 39, pp. 1405-1434 (2001)
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
[World of Stones 12:49]
    • Taymyrskiy Autonomous Okrug
      • Taimyr Peninsula
        • Putoran Plateau
Spiridonov, E. M. (2010). Ore-magmatic systems of the Noril’sk ore field. Russian Geology and Geophysics, 51(9), 1059-1077.
  • Far-Eastern Region
    • Chukotskii Autonomous Okrug
      • Koryakskoe plateau
http://geo.web.ru/druza/l-Tamvatnei.htm
  • Northern Caucasus Region
    • Kabardino-Balkarian Republic
      • Baksan Valley
Pavel M. Kartashov data
      • Verkhnechegemskaya caldera (Verkhni Chegem caldera; Upper Chegem caldera)
A. E. Zadov data
South Africa
 
  • Limpopo Province
    • Phalaborwa
      • Loolekop
Minerals of South Africa
  • Northern Cape Province
    • Kalahari manganese field
      • Black Rock
Rob Lavinsky photo
      • Hotazel
Giester, G., & Rieck, B. (1996). Wesselsite, SrCu [Si4Olo], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa. Mineralogical Magazine, 60, 795-798.
      • Kuruman
        • N'Chwaning Mines
Minerals of South Africa
Sweden
 
  • Medelpad
    • Sundsvall
Sandström, F., Binett, T., Wiklund, C. & Vikström, J. (2010): Alnöområdets geologi och mineralogi. Litiofilen. 27 (2) :14-42
  • Värmland
    • Filipstad
Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
      • Persberg district
        • Pajsberg
Mofjell, E.(1990): Xonotlite, Harstigen. Långbansnytt. vol 6 [reprinted in: Långbansnytt. De första 20 åren 1983-2003. Långbansällskapet - Skrifter och rapporter. 2, 141]; Mofjell, E. (1990): Mineralnytt från Sverige. STEIN 17(4),38
UK
 
  • Northern Ireland
    • Co. Antrim
      • Glenoe
Henmi C, Kusachi I, Henmi K, Sabine P A, Young B R (1973) A new mineral bicchulite, the natural analogue of gehlenite hydrate, from Fuka, Okayama Prefecture, Japan and Carneal, County Antrim, Northern Ireland, Mineralogical Journal, 7, 243-251
  • Scotland
    • Buchan Grampian
      • Huntly
        • The Bin (Bin of Huntly)
BMS Collection
    • North West Highlands
      • Ardnamurchan
American Mineralogist 35:1080
      • Glen Urquhart
[Specimen in the Natural History Museum, London]
    • Strathclyde
      • Isle of Mull
[Specimen in the Natural History Museum, London]
Dana 6:569
Dana 6:569
USA
 
  • Arizona
    • Gila Co.
      • Dripping Spring Mts
        • Banner District
          • Christmas area
            • Christmas
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 358, 428; Cesbron, F.P. & S.A. Williams (1980), Apachite and gilalite, two new copper silicates from Christmas, AZ, Min.Mag.: 43: 639-641.; Bob Meyer (2012) Micro Mineral Collector. Friends of Mineralogy National Newsletter 42:10-13
  • California
    • Colusa Co.
      • Coast Ranges
        • Stonyford
Mr. Gail E. Dunning.
    • Mendocino Co.
      • Cloverdale area
        • Russian River
Pabst, Adolf, Gross, E.B., and Alfors, J.T. (1967) Rosenhahnite, a new hydrous calcium silicate from Mendocino County, California. American Mineralogist: 52: 336; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 409.
      • Coastal Range
        • Reeves Place
          • Leech Lake Mountain
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 390; Pemberton, H. Earl (1983), Minerals of California: 409, 410.
    • Monterey Co.
      • Diablo Range
        • Priest Valley
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 390.
    • Riverside Co.
      • Crestmore
        • Crestmore quarries
          • Sky Blue Hill
Eakle, Arthur Starr (1917), Minerals associated with the crystalline limestone at Crestmore, Riverside County, California: University of California Department of Geological Sciences Bulletin: 10: 327-360; Eakle, Arthur Starr (1921), Jurupaite, a new mineral: American Mineralogist: 6: 107-109; Woodford, A.O., Crippen, R.A., and Garner, K.B. (1941) Section Across Commercial Quarry, Crestmorre, California. American Mineralogist: 26: 352-381; Daly, John W. (1935), Paragenesis of mineral assemblages at Crestmore, California American Mineralogist: 20: 654; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 409.
    • San Francisco Co.
www.missourigeologists.org/Min-Loc1-2005.pdf.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 115, 390.
        • Fort Point
Eakle, Arthur Starr (1901), Mineralogical notes; with chemical analyses by W.T. Schaller: University of California, Department of Geological Science Bulletin: 2: 316; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 222, 390; Schlocker, J. (1974) Geology of the San Francisco North quadrangle. USGS Professional Paper 782, 109 pp.; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 201-202, 409.
    • Santa Barbara Co.
      • Guadalupe
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 409.
      • Santa Ynez
Hanks, Henry Garber (1888), Pectolite Mining and Scientific Press: 56: 44; Irelan, William, Jr. (1890a), Ninth annual report of the State Mineralogist: California Mining Bureau. Report 9, 352 pp.: 47; Larsen, Esper Signius (1923), The identity of eakleite and xonotlite: American Mineralogist: 8: 181-182; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 285.
Larsen, Esper Signius (1917), Eakleite, a new mineral from California: American Journal of Science, 4th. series: 43: 464-465; Larsen, Esper Signius (1923), The identity of eakleite and xonotlite: American Mineralogist: 8: 181-182; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 173, 390.
  • Maryland
    • Montgomery Co.
      • Rockville
[MinRec 30:467]
  • Michigan
    • Keweenaw Co.
      • Lake Superior
AmMin 7:23
  • Missouri
    • St. Genevieve Co.
R&M 73:2 pp 98-117
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
Palache(1935):114; Dunn(1995):Pt3:450.
FOMS Millsite Committee (1986) (circa), List of Mineral Species Found on the Franklin Mill Site, Franklin-Ogdensburg Mineralogical Society (unpublished).
Beth Schaefer
  • North Carolina
    • Durham Co.
      • Durham
Kenny Gay message 15.09.2005
  • Texas
    • Culberson Co.
      • Apache Peak area
Rocks & Minerals: 66(3): 196-224.; Am Min 51:1766-1774
  • Vermont
    • Orleans & Lamoille Cos.
      • Lowell & Eden
Rocks & Min. Vol. 71, (1996)
  • Virginia
    • Loudoun Co.
AmMin 10:12
Minerals of Virginia 1990 by R. V. Dietrich
Minerals of Virginia 1990 by R. V. Dietrich
  • Washington
    • Skagit Co.
      • Cypress Island
Cannon, B. (1975): Minerals of Washington, p.74
Cannon, B. (1975): Minerals of Washington, p.74
        • Triangulation Point
Cannon, B. (1975): Minerals of Washington, p.74
    • Whatcom Co.
Cannon, B. (1975): Minerals of Washington, p.85
Minerals of Washington, B. Cannon, 1975
Minerals of Washington, B. Cannon, 1975
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