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CuFe4(SO4)6(OH)2 · 20H2O
Yellow-orange, ...
2½ - 3
Member of:
In allusion to the composition as the copper dominant (CUPRO) member of the COPIAPITE group.

Classification of Cuprocopiapite

Approved, 'Grandfathered' (first described prior to 1959)

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
B : With only medium-sized cations; insular octahedra and finite units

10 : Miscellaneous

Physical Properties of Cuprocopiapite

Yellow-orange, greenish-yellow
Hardness (Mohs):
2½ - 3
Perfect on {010}
Imperfect on {101}
2.23 g/cm3 (Measured)    2.26 g/cm3 (Calculated)

Optical Data of Cuprocopiapite

Biaxial (+)
RI values:
nα = 1.558 nβ = 1.575 nγ = 1.620
Calculated: 63°
Max Birefringence:
δ = 0.062
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Strong r > v
Shades of green

Chemical Properties of Cuprocopiapite

CuFe4(SO4)6(OH)2 · 20H2O
IMA Formula:
Cu2+Fe43+(SO4)6(OH)2 · 20H2O
Elements listed in formula:

Crystallography of Cuprocopiapite

Crystal System:
Class (H-M):
1 - Pinacoidal
Space Group:
Cell Parameters:
a = 7.34 Å, b = 18.19 Å, c = 7.28 Å
α = 93.88°, β = 101.5°, γ = 99.38°
a:b:c = 0.404 : 1 : 0.4
Unit Cell Volume:
V 934.68 ų (Calculated from Unit Cell)
Fine-grained lumpy aggregates.

Occurrences of Cuprocopiapite

Type Occurrence of Cuprocopiapite

Place of Conservation of Type Material:
Harvard University, Boston Ma, USA 99048, 99060
Empirical Formula:
CuFe43+(SO4)6(OH)2 · 20H2O

Relationship of Cuprocopiapite to other Species

Member of:
Other Members of Group:
AluminocopiapiteAl2/3Fe43+(SO4)6(OH)2 · 20H2O
CalciocopiapiteCaFe4(SO4)6(OH)2 · 10H2O
CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
FerricopiapiteFe5(SO4)6O(OH) · 20H2O
MagnesiocopiapiteMgFe43+(SO4)6(OH)2 · 20H2O
ZincocopiapiteZnFe43+(SO4)6(OH)2 · 18H2O
7.DB.05AubertiteCuAl(SO4)2Cl · 14H2O
7.DB.05Magnesioaubertite(Mg,Cu)Al(SO4)2Cl · 14H2O
7.DB.05Svyazhinite(Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O
7.DB.10KhademiteAl(SO4)F · 5H2O
7.DB.10RostiteAl(SO4)(OH) · 5H2O
7.DB.15JurbaniteAl(SO4)(OH) · 5H2O
7.DB.20Minasragrite(V4+O)(SO4) · 5H2O
7.DB.20Orthominasragrite(V4+O)(SO4) · 5H2O
7.DB.20Anorthominasragrite(V4+O)(SO4) · 5H2O
7.DB.25Bobjonesite(V4+O)(SO4) · 3H2O
7.DB.30AmarantiteFe23+(SO4)2O · 7H2O
7.DB.30HohmanniteFe23+(SO4)2O · 8H2O
7.DB.30MetahohmanniteFe23+(SO4)2O · 4H2O
7.DB.35AluminocopiapiteAl2/3Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35CalciocopiapiteCaFe4(SO4)6(OH)2 · 10H2O
7.DB.35CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35FerricopiapiteFe5(SO4)6O(OH) · 20H2O
7.DB.35MagnesiocopiapiteMgFe43+(SO4)6(OH)2 · 20H2O
7.DB.35ZincocopiapiteZnFe43+(SO4)6(OH)2 · 18H2O

Other Names for Cuprocopiapite

Name in Other Languages:
Simplified Chinese:铜叶绿矾

Other Information

Other Information:
Soluble in water.
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 Cuprocopiapite

Reference List:
Bandy (1938) American Mineralogist: 23: 737-739.

Palache, C., Peacock and Berry (1946) University of Toronto Stud., Geol. Series, no. 50: 9.

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.: 623.

Majzlan, J. & Michallik, R. (2007): The crystal structures, solid solutions, and infrared spectra of copiapite-group minerals. Mineralogical Magazine 71, 553-569.

Internet Links for Cuprocopiapite URL:
Please feel free to link to this page.

Localities for Cuprocopiapite

This 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.
  • New South Wales
    • Roxburgh Co.
Jim Sharpe, coll.
  • South Australia
    • Olary Province
      • Mingary
        • Pine Creek - Mutooroo area
  • Antofagasta Region
    • Antofagasta Province
samples analysed by Gerhard Mohn and Joy Desor
    • El Loa Province
      • Calama
        • Cerritos Bayos
Kampf, A.R.; Mills, S.J.; Housley, R.M.; Williams, P.A.; Dini, M. (2012): Alcaparrosaite, K3Ti4+Fe3+(SO4)4O(H2O)2, a new hydrophobic Ti4+ sulfate from Alcaparrosa, Chile. Mineralogical Magazine 76, 851-861.
        • Chuquicamata District
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: 625; Canadian Mineralogist (1985): 23: 53.
  • Xinjiang Autonomous Region
    • Hami Prefecture (Kumul Prefecture; Qumul Prefecture)
      • Hami Co. (Kumul Co.; Qumul Co.)
Yingxia Xu, Kezhang Qin, Kuishou Ding, Yu Miao, Tonghui Fang, Xingwang Xu, and He Sun (2007): Mineral Deposits 26(1), 58-69
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
      • Lavrion District Mines
        • Agios Konstantinos [St Constantine] (Kamariza)
          • Kamariza Mines (Kamareza Mines)
            • Hilarion area
Wendel, W. (2000): Lavrion-News 2000. Lapis 25 (10), 45-47.
  • Shan State
    • Kyaukme District
      • Namtu Township
Dill, H. G., Weber, B., & Botz, R. (2013). Metalliferous duricrusts. Neues Jahrbuch für Mineralogie-Abhandlungen: Journal of Mineralogy and Geochemistry, 190(2), 123-195.
  • Aveiro District
    • Albergaria-a-Velha
      • Branca
Marques de Sá, J. & Leal Gomes, C. (2010): Les mines de cuivre et nickel de Palhal et Telhadela, Albergaria-a-Velha, Aveiro, Portugal. Le Règne Minéral, 92, 36-47.
  • Arizona
    • Cochise Co.
      • Mule Mts
        • Warren District
          • Bisbee
            • Calumet and Arizona group of claims (Calumet and Arizona Mining Company group of claims)
Grant, Raymond W., Richard A. Bideaux & Sidney A. Williams (2006), Minerals Added to the Arizona List 1995 to 2005: 3.
    • Yavapai Co.
      • Black Hills (Black Hill Range)
        • Verde District
          • Jerome
Lausen, C. (1928): Hydrous sulphates formed under fumerolic conditions at the United Verde Mine. American Mineralogist 13, 203-229.
  • California
    • Amador Co.
      • Pardee District
        • Sunnybrook
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 273, 274.
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