Ferricopiapite
A valid IMA mineral species - grandfathered
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About Ferricopiapite
Formula:
Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O
Colour:
Yellow, yellow-orange
Hardness:
2½ - 3
Specific Gravity:
2.14
Crystal System:
Triclinic
Member of:
Name:
In allusion to its composition as the ferric iron dominant member of the copiapite group.
Type Locality:
Unique Identifiers
Mindat ID:
1490
Long-form identifier:
mindat:1:1:1490:4
GUID
(UUID V4):
(UUID V4):
d06b7645-a470-4456-ae5e-5554ba074a95
IMA Classification of Ferricopiapite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Ferricopiapite
7.DB.35
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
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
31.10.5.4
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
10 : Miscellaneous
31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
10 : Miscellaneous
25.10.12
25 : Sulphates
10 : Sulphates of Fe alone
25 : Sulphates
10 : Sulphates of Fe alone
Mineral Symbols
As of 2021 there are now IMAâCNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Symbol | Source | Reference |
---|---|---|
Fcpi | IMAâCNMNC | Warr, L.N. (2021). IMAâCNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Ferricopiapite
Colour:
Yellow, yellow-orange
Hardness:
2½ - 3 on Mohs scale
Cleavage:
Perfect
Perfect on {010}
Perfect on {010}
Density:
2.14 g/cm3 (Measured) 2.14 g/cm3 (Calculated)
Optical Data of Ferricopiapite
Type:
Biaxial (+)
RI values:
nα = 1.496 - 1.530 nβ = 1.531 - 1.550 nγ = 1.579 - 1.592
2V:
Measured: 69° to 80°
Max Birefringence:
δ = 0.083
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
relatively strong r > v
Pleochroism:
Visible
Comments:
Shades of yellow
Chemistry of Ferricopiapite
Mindat Formula:
Fe3+0.67Fe3+4(SO4)6(OH)2 · 20H2O
Elements listed:
Crystallography of Ferricopiapite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 7.394(5) Å, b = 18.36(2) Å, c = 7.324(8) Å
α = 93.8(1)°, β = 102.2(1)°, γ = 98.9(1)°
α = 93.8(1)°, β = 102.2(1)°, γ = 98.9(1)°
Ratio:
a:b:c = 0.403 : 1 : 0.399
Unit Cell V:
955.05 Ă
Âł (Calculated from Unit Cell)
Z:
1
Morphology:
Pseudo-orthorhombic plates; scaly, granular aggregates.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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CIF File Best | x | y | z | a | b | c
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Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0000315 | Ferricopiapite | Fanfani L, Nunzi A, Zanazzi P F, Zanzari A R (1973) The copiapite problem: The crystal structure of a ferrian copiapite American Mineralogist 58 314-322 | 1973 | 0 | 293 | ||
0006121 | Ferricopiapite | Majzlan J, Kiefer B (2006) An X-ray and neutron-diffraction study of synthetic ferricopiapite, Fe14/3(SO4)6(OD,OH)2(D2O,H2O)20, and ab-initio calculations on the structure of magnesiocopiapite MgFe4(SO4)6(OH)2(H2O)20 The Canadian Mineralogist 44 1227-1237 | 2006 | synthetic | 0 | 293 | |
0007143 | Ferricopiapite | Majzlan J, Navrotsky A, McCleskey R B, Alpers C N (2006) Thermodynamic properties and crystal structure refinement of ferricopiapite, coquimbite, rhomboclase, and Fe2(SO4)3(H2O)5 European Journal of Mineralogy 18 175-186 | 2006 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
45a : [Sulfates, arsenates, selenates, antimonates] | |
47a : [Near-surface hydration of prior minerals] | |
47b : [Sulfates and sulfites] |
Geological Setting:
Oxidation zone of pyrite deposits in arid environments.
Type Occurrence of Ferricopiapite
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 80516.
Synonyms of Ferricopiapite
Other Language Names for Ferricopiapite
German:Ferricopiapit
Russian:ЀДŃŃĐžĐșĐŸĐżĐžĐ°ĐżĐžŃ
Simplified Chinese:é«éć¶ç»żçŸ
Spanish:Ferricopiapita
Ferrocopiapita
Ferrocopiapita
Traditional Chinese:é«é”èç¶ ç€Ź
Relationship of Ferricopiapite to other Species
Member of:
Other Members of this group:
Aluminocopiapite | Al2/3Fe3+4(SO4)6(OH)2 · 20H2O | Tric. 1 : P1 |
Calciocopiapite | CaFe3+4(SO4)6(OH)2 · 20H2O | Tric. 1 : P1 |
Copiapite | Fe2+Fe3+4(SO4)6(OH)2 · 20H2O | Tric. 1 : P1 |
Cuprocopiapite | Cu2+Fe3+4(SO4)6(OH)2 · 20H2O | Tric. 1 : P1 |
Magnesiocopiapite | MgFe3+4(SO4)6(OH)2 · 20H2O | Tric. 1 : P1 |
Zincocopiapite | ZnFe3+4(SO4)6(OH)2 · 18H2O | Tric. 1 : P1 |
Common Associates
Associated Minerals Based on Photo Data:
6 photos of Ferricopiapite associated with Coquimbite | AlFe3(SO4)6(H2O)12 · 6H2O |
4 photos of Ferricopiapite associated with Goldichite | KFe(SO4)2 · 4H2O |
4 photos of Ferricopiapite associated with Sulphur | S8 |
3 photos of Ferricopiapite associated with Marcasite | FeS2 |
3 photos of Ferricopiapite associated with Baryte | BaSO4 |
3 photos of Ferricopiapite associated with Römerite | Fe2+Fe3+2(SO4)4 · 14H2O |
3 photos of Ferricopiapite associated with Halotrichite | FeAl2(SO4)4 · 22H2O |
3 photos of Ferricopiapite associated with Melanterite | Fe2+(H2O)6SO4 · H2O |
2 photos of Ferricopiapite associated with Rietveldite | Fe(UO2)(SO4)2(H2O)5 |
1 photo of Ferricopiapite associated with Melanterite Group | MSO4 · 7H2O |
Related Minerals - Strunz-mindat Grouping
7.DB.05 | Aubertite | CuAl(SO4)2Cl · 14H2O |
7.DB.05 | Magnesioaubertite | (Mg,Cu)Al(SO4)2Cl · 14H2O |
7.DB.05 | Svyazhinite | (Mg,Mn2+,Ca)(Al,Fe3+)(SO4)2F · 14H2O |
7.DB.10 | Khademite | Al(SO4)F · 5H2O |
7.DB.10 | Rostite | Al(SO4)(OH) · 5H2O |
7.DB.15 | Jurbanite | Al(SO4)(OH) · 5H2O |
7.DB.20 | Minasragrite | (V4+O)(SO4) · 5H2O |
7.DB.20 | Orthominasragrite | (V4+O)(SO4) · 5H2O |
7.DB.20 | Anorthominasragrite | (V4+O)(SO4) · 5H2O |
7.DB.25 | Bobjonesite | (V4+O)(SO4) · 3H2O |
7.DB.27 | Karpovite | Tl2VO(SO4)2(H2O) |
7.DB.30 | Amarantite | Fe3+2(SO4)2O · 7H2O |
7.DB.30 | Hohmannite | Fe3+2(SO4)2O · 8H2O |
7.DB.30 | Metahohmannite | Fe3+2(SO4)2O · 4H2O |
7.DB.35 | Aluminocopiapite | Al2/3Fe3+4(SO4)6(OH)2 · 20H2O |
7.DB.35 | Calciocopiapite | CaFe3+4(SO4)6(OH)2 · 20H2O |
7.DB.35 | Copiapite | Fe2+Fe3+4(SO4)6(OH)2 · 20H2O |
7.DB.35 | Cuprocopiapite | Cu2+Fe3+4(SO4)6(OH)2 · 20H2O |
7.DB.35 | Magnesiocopiapite | MgFe3+4(SO4)6(OH)2 · 20H2O |
7.DB.35 | Zincocopiapite | ZnFe3+4(SO4)6(OH)2 · 18H2O |
Other Information
Notes:
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.
Internet Links for Ferricopiapite
mindat.org URL:
https://www.mindat.org/min-1490.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
Mineral Dealers:
References for Ferricopiapite
Reference List:
Fanfani, Luca, Nunzi, Antonio, Zanazzi, Pier Francesco, Zanzari, and Anna Rosa (1973) The copiapite problem: The crystal structure of a ferrian copiapite. American Mineralogist, 58 (3-4) 314-322
Localities for Ferricopiapite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
â - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Argentina | |
| Milka K. de Brodtkorb (2002) +1 other reference |
MARQUEZ-ZAVALIA | |
Atlantic Ocean | |
| Gablina et al. (2018) |
Australia | |
| Sielecki (1988) |
Sielecki (1985) +1 other reference | |
Sielecki (1988) | |
| R Bottrill |
Bulgaria | |
| Atanassova et al. (2009) |
Canada | |
| Canadian Museum of Nature specimen 49498 |
Chile | |
| samples analysed by Gerhard Moehn and ... |
Demetrius Pohl identified AMNH 1985 +1 other reference | |
Anthony et al. (2016) | |
China | |
| Yingxia Xu et al. (2007) |
Costa Rica | |
| Ulloa et al. (2018) |
Cuba | |
| Zwahr et al. (1999) |
Czech Republic | |
| MatĂœsek D. |
Germany | |
| Schnorrer-Köhler (1988) |
| Lapis 1988 (1) |
| Lapis 1988 (1) |
| 86. +1 other reference |
Greece | |
| Rieck et al. (2022) |
| |
| Rieck et al. (2018) |
Hungary | |
| Koller G.Own found. |
Iceland | |
| Carson (2015) |
| Mineralogy and bulk geochemistry of a ... |
Italy | |
| Adorni F. (1997) |
Adorni F. (1997) | |
| Stara et al. (1994) |
Fernando Caboni et al. (2024) | |
Fernando Caboni et al. (2024) | |
Japan | |
| Nambu et al (1974) |
| King (n.d.) +1 other reference |
| Y. Okazaki collection |
Morocco | |
| Verhaert et al. (2018) |
Portugal | |
| Marques de SĂĄ et al. (2010) |
| Pedro Alves collection and analytical ... |
| Pedro Alves collection and photo. |
| Oliveira et al. (2024) |
| Ko Jansen collection |
Romania | |
| Apopei et al. (2005) |
Romanian Journal of Mineral Deposits +1 other reference | |
South Africa | |
| Cairncross et al. (1995) |
| Heron (1994) +1 other reference |
| Cairncross et al. (1995) |
Spain | |
| Bocamina (4) |
| Rosell-Riba et al. (2022) |
UK | |
| Smith (1973) +2 other references |
USA | |
| Graeme (1993) |
Graeme (1993) +1 other reference | |
| Van Nostrand Reinholt Press: 274. +2 other references |
| Jeremy Zolan |
| Collected by Julian Gray 21 September ... |
| |
| King et al. (1988) |
Min News 6:8 p3 | |
Schindler et al. (2003) | |
| Travis Olds collection |
Patrick Haynes. IDs by the late Howard ... | |
| Dietrich (1990) |
Mars | |
| Johnson et al. (2007) +1 other reference |
| Lane et al. (2008) |
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