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⇱ Dioskouriite-2O: Mineral information, data and localities.

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Dioskouriite-2O

A structural variant of Dioskouriite
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Formula:
CaCu4Cl6(OH)4 · 4H2O
Crystal System:
Orthorhombic
A polytype of Dioskouriite

Intergrown with the monoclinic, -2M polytype.


Unique IdentifiersHide

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Mindat ID:
47632
Long-form identifier:
mindat:1:1:47632:4

Chemistry of Dioskouriite-2OHide

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Mindat Formula:
CaCu4Cl6(OH)4 · 4H2O
Element Weights:
Element% weight
Cu39.282 %
Cl32.874 %
O19.781 %
Ca6.194 %
H1.869 %

Calculated from ideal end-member formula.

Crystallography of Dioskouriite-2OHide

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Crystal System:
Orthorhombic
Class (H-M):
222 - Disphenoidal
Space Group:
P212121
Cell Parameters:
a = 7.3193(7) Å, b = 10.371(1) Å, c = 20.560(3) Å
Ratio:
a:b:c = 0.706 : 1 : 1.982
Unit Cell V:
1,560.68 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

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Powder Diffraction Data:
d-spacingIntensity
10.34 Å(100)
5.940 Å(15)
5.754 Å(9)
5.177 Å(13)
5.033 Å(10)
2.735 Å(21)
2.524 Å(6)
2.318 Å(8)

Other InformationHide

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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 Dioskouriite-2OHide

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mindat.org URL:
https://www.mindat.org/min-47632.html
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References for Dioskouriite-2OHide

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Quick NavTopUnique IdentifiersChemistry Crystallography X-Ray Powder DiffractionOther InformationInternet Links References
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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