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CaFe43+(SO4)6(OH)2 · 20H2O
Grayish yellow to ...
2½ - 3
Member of:
Calcium member of the copapite group.
This page provides mineralogical data about Calciocopiapite.

Classification of Calciocopiapite


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 Calciocopiapite

Diaphaneity (Transparency):
Grayish yellow to brownish yellow
Hardness (Mohs):
2½ - 3
2.225 g/cm3 (Calculated)

Optical Data of Calciocopiapite


Chemical Properties of Calciocopiapite

IMA Formula:
CaFe43+(SO4)6(OH)2 · 20H2O
Elements listed in formula:

Crystallography of Calciocopiapite

Crystal System:
Class (H-M):
1 - Pinacoidal
Space Group:
Cell Parameters:
a = 7.35 Å, b = 18.21 Å, c = 7.01 Å
α = 85.52°, β = 103.55°, γ = 100.62°
a:b:c = 0.404 : 1 : 0.385
Unit Cell Volume:
V 895.90 ų (Calculated from Unit Cell)
Powdery crusts.
By analogy to copiapite.
X-Ray Powder Diffraction Data:
3.108 (10)
3.027 (10)
2.809 (10)
1.860 (10)
3.458 (9)
1.267 (9)
1.244 (9)

Type Occurrence of Calciocopiapite

General Appearance of Type Material:
powdery crusts
Geological Setting of Type Material:
Oxidized zone of a pyrite-magnetite deposit.
Empirical Formula:
CaFe43+(SO4)6(OH)2 · 10H2O
Associated Minerals at Type Locality:

Relationship of Calciocopiapite to other Species

Member of:
Other Members of Group:
AluminocopiapiteAl2/3Fe43+(SO4)6(OH)2 · 20H2O
CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
CuprocopiapiteCuFe4(SO4)6(OH)2 · 20H2O
FerricopiapiteFe5(SO4)6O(OH) · 20H2O
MagnesiocopiapiteMgFe43+(SO4)6(OH)2 · 20H2O
ZincocopiapiteZnFe43+(SO4)6(OH)2 · 18H2O
7.DB.05AubertiteCu2+Al(SO4)2Cl · 14H2O
7.DB.05MagnesioaubertiteMgAl(SO4)2Cl · 14H2O
7.DB.05SvyazhiniteMgAl(SO4)2F · 14H2O
7.DB.10KhademiteAlSO4F · 5H2O
7.DB.10RostiteAlSO4(OH) · 5H2O
7.DB.15JurbaniteAlSO4(OH) · 5H2O
7.DB.20MinasragriteV4+O(SO4) · 5H2O
7.DB.20OrthominasragriteV4+O(SO4) · 5H2O
7.DB.20AnorthominasragriteV4+O(SO4) · 5H2O
7.DB.25BobjonesiteV4+OSO4 · 3H2O
7.DB.30AmarantiteFe23+O(SO4)2 · 7H2O
7.DB.30HohmanniteFe23+O(SO4)2 · 8H2O
7.DB.30MetahohmanniteFe23+O(SO4)2 · 4H2O
7.DB.35Aluminocopiapite(Al,Mg)Fe43+(SO4)6(OH,O)2 · 20H2O
7.DB.35CopiapiteFe2+Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35CuprocopiapiteCu2+Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35FerricopiapiteFe3+0.67Fe43+(SO4)6(OH)2 · 20H2O
7.DB.35MagnesiocopiapiteMgFe43+(SO4)6(OH)2 · 20H2O
7.DB.35ZincocopiapiteZnFe43+(SO4)6(OH)2 · 20H2O

Other Names for Calciocopiapite

Name in Other Languages:

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.

References for Calciocopiapite

Reference List:
Kashkai M A, Alijev R M (1960) The new mineral - calciocopiapite (tuciit) of the capiapite group and the characteristics of this group in general. Trudy Azerbaĭdzhanskogo Geograficheskogo Obshchestva 1960, 49-76

Fleischer M (1962) New mineral names. American Mineralogist: 47: 807.

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 Calciocopiapite URL:
Please feel free to link to this page.

Localities for Calciocopiapite

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.
Azerbaijan (TL)
  • Daşkəsən District (Daskasan; Dashkyasan)
    • Dashkesan
Kashkai M A, Alijev R M (1960) The new mineral - calciocopiapite (tuciit) of the capiapite group and the characteristics of this group in general. Trudy Azerbaĭdzhanskogo Geograficheskogo Obshchestva 1960, 49-76; Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • California
    • San Bernardino Co.
      • Calico Mts (Calico Hills)
        • Calico District (Daggett District; Calico-Daggett area)
          • Calico
Excalibur Mineral Co.
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