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Cuprotungstite

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Formula:
Cu2(WO4)(OH)2
System:
Tetragonal
Colour:
Emerald green, brown, ...
Hardness:
4 - 5
Name:
In allusion to the composition, containing copper (Latin = CUPRum) and TUNGSTen.
A rare secondary mineral commonly occurring as the result of scheelite altering in a copper-rich environment.

Classification of Cuprotungstite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Explanation of status:
Valid, but formula still somewhat uncertain (crystal structure not solved yet); alternate formula: Cu3(WO4)2(OH)2.
7.GB.15

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
48.3.2.1

48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
3 : Basic Anhydrous Molybdates and Tungstates
27.4.1

27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates
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First Recorded Occurrence of Cuprotungstite

Place of Conservation of First Recorded Material:
Natural History Museum, Paris, France: #69.47.
Year of Discovery:
1869

Physical Properties of Cuprotungstite

Vitreous, Waxy, Earthy
Diaphaneity (Transparency):
Translucent
Colour:
Emerald green, brown, olive-green, pistachio-green
Streak:
Greenish gray to greenish yellow
Hardness (Mohs):
4 - 5
Density:
5.4 - 6.98 g/cm3 (Measured)    7.06 g/cm3 (Calculated)

Crystallography of Cuprotungstite

Crystal System:
Tetragonal
Class (H-M):
4 2 2 - Trapezohedral
Space Group:
P41 21 2
Cell Parameters:
a = 8.93Å, c = 14.48Å
Ratio:
a:c = 1 : 1.622
Unit Cell Volume:
V 1,154.71 ų (Calculated from Unit Cell)
Z:
12
Morphology:
Crystals minute, dipyramidal; forms microcrystalline aggregates of botryoidal globules, incrustations, and veinlets; also compact to friable massive.

Optical Data of Cuprotungstite

Type:
Uniaxial (-)
RI values:
nω = 2.180 nε = 2.100
Max Birefringence:
δ = 0.080
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Very High

Chemical Properties of Cuprotungstite

Formula:
Cu2(WO4)(OH)2
Essential elements:
All elements listed in formula:

Relationship of Cuprotungstite to other Species

Common Associates:
7.GB.05LindgreniteCu3(MoO4)2(OH)2
7.GB.10SzenicsiteCu3(MoO4)(OH)4
7.GB.15UM1999-38-WO:CrV(V, Cr, W, O, H) [V:Cr:W ratio about 2:1:3]
7.GB.20Phyllotungstite(H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K)
7.GB.25RankachiteCa0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2O
7.GB.30FerrimolybditeFe2(MoO4)3 · nH2O
7.GB.35AnthoiniteAlWO3(OH)3
7.GB.35MpororoiteWAlO3(OH)3 · 2(H2O)
7.GB.40Obradovicite-KCu[K2(H2O)17Cu(H2O)6][Mo8As2Fe33+O34(OH)3]
7.GB.45Mendozavilite-NaFe[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe33+O35(OH)2]
7.GB.45Paramendozavilite[KAl4(H2O)30][Mo12P6Fe63+O60(OH)13]
7.GB.50Tancaite-(Ce)FeCe(MoO4)3·3H2O
27.4.2ScheeliteCa(WO4)
27.4.4AnthoiniteAlWO3(OH)3
27.4.5MpororoiteWAlO3(OH)3 · 2(H2O)
27.4.6Yttrotungstite-(Y)YW2O6(OH)3
27.4.7Yttrotungstite-(Ce)(Ce,Nd,Y)W2O6(OH)3
27.4.8StolzitePb(WO4)
27.4.9RaspitePb(WO4)
27.4.10RusselliteBi2WO6
27.4.11PinalitePb3WO5Cl2
27.4.12Uranotungstite(Fe2+,Ba,Pb)(UO2)2(WO4)(OH)4 · 12H2O
27.4.13HübneriteMnWO4
27.4.14FerberiteFeWO4
27.4.15Wolframite(Fe2+)WO4 to (Mn2+)WO4
27.4.16Ferritungstite
27.4.17Phyllotungstite(H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K)
27.4.18Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10

Other Names for Cuprotungstite

Name in Other Languages:

Other Information

Other Information:
Readily soluble in acids.

Forms more or less complete pseudomorphs after Scheelite.
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 Cuprotungstite

Reference List:
Whitney (1866) Proceedings of the California Academy of Science: 3: 287 (as Cuproscheelite).

Adam, M. (1869) Tableau minéralogique, Paris: 32.

Domeyko (1869) Annales des mines: 16: 537 (as Tungstate de cuivre).

Dana, E.S. (1892) System of Mineralogy, 6th. Edition, New York: 988.

Hess (1917) U.S. Geological Survey Bulletin 652: 32.

Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 64.

Hintze, Carl (1929) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [3B]: 4087.

Schaller, W. T. (1932): Chemical composition of cuprotungstite. American Mineralogist: 17: 234-237.

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. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1091-1092.

Doucet, S., Pierrot, R. & Pillard, F. (1969): Synthesis and new data on cuprotungstite. Bull. Soc. Fr. Mineral. Cristallogr.: 92, 497-499. (in French).

Walenta, K. (1979): New data for cuprotungstite. Mineralogical Magazine: 43: 448-450.

Duggan, M.B. (1988) Cuprotungstite from the Cordillera mine, Crookwell, New South Wales. Australian Mineralogist, 3, 61–64.

American Mineralogist (1990): 75: 713.

Internet Links for Cuprotungstite

Localities for Cuprotungstite

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
 
  • New South Wales
    • Georgiana Co.
      • Tuena
        • Kangaloolah
M. B. Duggan (1988): Cuprotungstite from the Cordillera mine, Crookwell, New South Wales. Australian Mineralogist 3 (2), 61-64.
    • Yancowinna Co.
No reference listed
  • Queensland
    • Mount Isa - Cloncurry area
      • Cloncurry District
        • Cloncurry
Jim Sharpe coll.
  • Tasmania
    • Rossarden district
Bottrill RS & Baker, WE (in prep) Catalogue of Minerals of Tasmania. Mineral Resources Tasmania
Chile
 
  • Atacama Region
    • Copiapó Province
      • Cerro Blanco district
R.H.Sillitoe/A.H.Clark/A.E.S.Mayer: "Cuproscheelite from the Copiapó Mining district, Northern Chile": AM, Vol 55 july-august 1970
    • Huasco Province
      • Vallenar
C. Ruiz Fuller/F. Peebles (1988): "Yacimientos metalíferos de Chile": Fondecyt, Stgo de Chile.
  • Coquimbo Region
    • Choapa Province
      • Salamanca
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: 1091.; Kurt Walenta (1979) New Data for Cuprotungstite. Mineralogical Magazine 43:448-450.
    • Elqui Province
      • Chingoles
C. Ruiz Fuller/F. Peebles (1988): "Yacimientos metalíferos de Chile": Fondecyt, Stgo de Chile
Germany
 
  • Baden-Württemberg
    • Black Forest
      • Wolfach
        • Oberwolfach
          • Rankach valley
Walenta, K. (1992): Die Mineralien des Schwarzwaldes. Chr. Weise Verlag, München, 336 pp. (in German); Kurt Walenta (1979) New Data for Cuprotungstite. Mineralogical Magazine 43:448-450.
  • Saxony
    • Erzgebirge
      • Clausnitz - Sayda District
        • Clausnitz
J. Gröbner und U. Kolitsch (2006): Neufunde aus dem Erzgebirge (II). Mineralien-Welt 17 (3), 22-27.
Italy
 
  • Piedmont
    • Torino Province
      • Canavese District
        • Léssolo
          • Cálea
http://www.webmineralshop.com/articoli/brosso_eng.htm
Japan
 
  • Honshu Island
    • Chubu region
      • Yamanashi prefecture
        • Kinpuzan district
          • Kofu City
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: 1091.
    • Chugoku Region
      • Yamaguchi Prefecture
        • Mine city
Uehara, S., et al. (2014) Minerals from Kyushu and Yamaguchi. (Fukuoka Mineral Club, 355 pages)
Yamada (2001) Suisyou, 14, 7-11.
Uehara, S., et al. (2014) Minerals from Kyushu and Yamaguchi. (Fukuoka Mineral Club, 355 pages)
Kazakhstan
 
  • Karagandy Province (Qaragandy Oblysy; Karaganda Oblast')
    • Betpakdala Desert (Bet-Pak-Dal Desert)
P.M. Kartashov data; Evseev, A. A. (1995) Kazaknstan and Middle Asia. A brief Mineralogical Guide. World of Stone 8:24-30
Mexico
 
  • Baja California Sur (BC Sur)
    • Mun. de La Paz
Adam (1869) Tableau minéral: 32; 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: 1091.
  • Chihuahua
    • Mun. de Buenaventura
      • San Lorenzo
Panczner (1987): 176.
  • Sonora
    • Mun. de Arizpe
      • Arizpe
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: 1091.
    • Mun. de Huépac
      • Huépac
Panczner (1987): 176.
    • Mun. de Yécora
      • San Nicolás
Panczner(1987):336.
Panczner(1987):176,336.
Namibia
 
  • Khomas Region
    • Gamsberg Area
      • Natas Farm 220
Collection of NHM, Vienna; Kurt Walenta (1979) New Data for Cuprotungstite. Mineralogical Magazine 43:448-450.
  • Kunene Region
    • Khorixas District
      • Mesopotamia Copper Valley
Gerhard Niedermayr: Mesopotamia 504 - die Typlokalität des Namibit; Niedermayr, G.(2001): Mesopotamia 504 - die Typlokalität des Namibit. In: S. Jahn, O. Medenbach, G. Niedermayr, G. Schneider: Namibia - Zauberwelt edler Steine und Kristalle (1 Edition, in German), 97-99
South Africa
 
  • Limpopo Province
    • Sekhukhune District
      • Marble Hall
Minerals of South Africa
  • Northern Cape Province
    • ZF Mgcawu District
      • Upington
Minerals of South Africa
UK
 
  • England
    • Cornwall
      • Callington District
        • Calstock
          • Gunnislake
            • Clitters United Mines
Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
      • Camborne - Redruth - St Day District
        • Gwennap
          • St Day United Mines (Poldice Mines)
[Golley & Williams, 1995, "Cornish Mineral Reference Manual", p21]
      • St Austell District
        • Treverbyn
          • Stenalees
[Golley & Williams, 1995, "Cornish Mineral Reference Manual", p21]
    • Cumbria
      • North and Western Region (Cumberland)
        • Southern Fells
          • Waberthwaite
BMS Database
USA
 
  • Arizona
    • Cochise Co.
      • Little Dragoon Mts
        • Cochise District
Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187, Index of Mining Properties in Cochise Co., AZ: 55 (Table 4); Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 197; Dale, V.B., et al (1960), Tungsten deposits of Cochise, Pima, and Santa Cruz Cos., AZ, US Bur. of mines Rept. Inv. 5650: 50.
          • Dragoon
Wilson, E.D. 91941), AZ Bur. Mines Bull. 148: 44.
    • Maricopa Co.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 423; Dale, V.B. (1959), Tungsten deposits of Yuma, Maricopa, Pinal and Graham Cos., AZ, US Bur. Mines Rept. Inv. 5516; Wilson, E.D. (1941), AZ Bur. Mines Bull. 148: 26-27; Hess, F.L. (1917), Tungsten minerals and deposits, USGS Bull. 652: 33, 64..
      • Verde Mts
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 278; Schaller, W.T. (1932), Chemical composition of cuprotungstite, Am.Min.: 17: 234-237; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 82; Hess, Frank L. (1917), Tungsten minerals and deposits, USGS Bull. 652: 25 (Plate XVII).; Kurt Walenta (1979) New Data for Cuprotungstite. Mineralogical Magazine 43:448-450.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 363; Schaller, W.T. (1932),Chemical composition of cuprotungstite, Am.Min. 17:234-237.
    • Mohave Co.
      • Hualapai (Hualpai) Mts
        • Boriana District
          • Boriana Canyon
Conway, C.M., et al (1990), USGS Bull. 1737-E: E10; Wilson, E.D. (1941), AZ Bur. of Mines Bull. 148, Tungsten Deps. of AZ: 11-14.
    • Pima Co.
      • Santa Rita Mts
        • Helvetia-Rosemont District
          • Helvetia
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 82.
            • Monument Mountain
Collected personally; Cuprotungstite - knowledge among local collectors
    • Yuma Co.
      • Eagle Tail Mts (Cemetary Ridge)
        • Eagle Tail District
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 197; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 82.
  • California
    • Inyo Co.
      • Panamint Mts (Panamint Range)
        • Cottonwood Mts
          • Ubehebe District
            • Big Dodd Spring
McAllister, James Franklin (1955), Geology of mineral deposits in the Ubehebe Peak quadrangle, Inyo County, California. California Division Mines, Special Report 42, 63 pp.: 51, 55; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 165; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 338.
    • Kern Co.
      • White River area
Schaller, Waldemar Theodore (1932), Chemical composition of cuprotungstite: American Mineralogist: 17: 237; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 165, 329-330; 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: 1091.
    • Plumas Co.
      • Diamond Mts
        • Last Chance District
          • Adams Peak
Dunning, G.E., Cooper, J.F. (2005) Mineralogy of the Spring Creek area, Last Chance mining district, Plumas County, California. Axis: 1: 1-30.
Dunning, G.E., Cooper, J.F. (2005) Mineralogy of the Spring Creek area, Last Chance mining district, Plumas County, California. Axis: 1: 1-30.
    • Riverside Co.
      • Santa Rosa Mts
Alfredo Petrov specimen
    • Sierra Co.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 338.
  • Colorado
    • Chaffee Co.
      • Cleora District
Minerals of Colorado (1997) Eckels, E. B.
Minerals of Colorado (1997) Eckels, E. B.
  • Idaho
    • Adams Co.
Rocks & Min. 70:244
        • Cuprum
[O'Donoghue, 1978 - "Encyclopedia of Minerals & Gemstones", p284]
Ream, Lanny R. 2004. Idaho Minerals, 2nd edition, Revised and Updated
  • Montana
    • Beaverhead Co.
      • Calvert Hill District
Gobla, M.J. (2012) Montana mineral locality index. Rocks & Minerals, 87, #3, 208-240.
  • Nevada
    • Esmeralda Co.
NBMG Spec. Pub. 31 Minerals of Nevada
    • Lander Co.
      • Battle Mountain District
USGS Bull 2009
    • Mineral Co.
      • Leonard District
NBMG Spec. Pub. 31 Minerals of Nevada
  • New Mexico
    • Hidalgo Co.
DeMark, R.S. (2004): News from the Apache mine, New Mexico. Mineral News, 20, 8.
Min News 20:10 p 8
    • Sierra Co.
Minerals of New Mexico 3rd ed.
    • Taos Co.
Northrop, Minerals of New Mexico, 3rd Rev. Ed., 1996
    • Cabarrus Co.
Genth,F.A ,1891,The Minerals of North Carolina,pg 90
    • Vance Co.
      • Hamme Tungsten District
        • Tungsten
Espenshade,G.H (1947) Tungsten Deposits of Vance County North Carolina, and Mecklenburg County, Virginia;U.S Geological Survey Bulletin 948-A
  • Utah
    • Tooele Co.
      • Deep Creek Mts
        • Gold Hill District (Clifton District)
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
Jaroslav Hyrsl specimen
  • Virginia
    • Mecklenburg Co.
      • Hamme Tungsten
Minerals of Virginia, 1990 by R. V. Dietrich
Minerals of Virginia, 1990 by R. V. Dietrich
Minerals of Virginia, 1990 by R. V. Dietrich
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