Iranite (original) (raw)
A valid IMA mineral species
About IraniteHide
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Formula:
Pb10Cu(CrO4)6(SiO4)2(OH)2
Name:
After the type locality in the country of Iran.
Hemihedrite-Iranite Series. The copper analogue of hemihedrite.
Bariand and Poullen (1980) suggest that the type locality is probably not the Sebarz mine as given in Bariand and Herpin (1963), but the Chah-Khouni mine.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:2040:0
a50624bd-3ef5-4a9b-bfd2-20e680b1dc9d
IMA Classification of IraniteHide
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IMA Formula:
CuPb10(CrO4)6(SiO4)2(OH)2
Type description reference:
Classification of IraniteHide
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7.FC.15
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
F : Chromates
C : With PO4, AsO4, SiO4
36.1.1.1
36 : COMPOUND CHROMATES
1 : Miscellaneous
27.2.8
27 : Sulphites, Chromates, Molybdates and Tungstates
2 : Chromates
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Irn | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of IraniteHide
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Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of IraniteHide
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Optical Data of IraniteHide
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RI values:
_n_α = 2.250 - 2.300 _n_γ = 2.400 - 2.500
δ = 0.150 - 0.200
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Dispersion:
relatively strong
Optical Extinction:
Extinction 5° to the elongation.
Comments:
On (100): brownish-orange along the elongation, yellow-orange perpendicular to the elongation.
Comments:
One index of refraction was approximately 2.25-2.30, and another was 2.40-2.50.
Chemistry of IraniteHide
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Mindat Formula:
Pb10Cu(CrO4)6(SiO4)2(OH)2
Crystallography of IraniteHide
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Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 9.5416(4) Å, b = 11.3992(5) Å, c = 11.3992(4) Å
α = 120.472(2)°, β = 92.470(2)°, γ = 55.531(2)°
Ratio:
a:b:c = 0.837 : 1 : 1
Unit Cell V:
827.46 ų (Calculated from Unit Cell)
Morphology:
Type description: Prominant forms {100}, {010}, {011} and also visible {101}, {001}, {102}.
Comment:
Cell parameters from Tang et al. (2007).
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0010340 | Iranite | Yang H, Sano J L, Eichler C, Downs R T, Costin G (2007) Iranite, CuPb10(CrO4)6(SiO4)2(OH)2, isomorphous with hemihedrite Acta Crystallographica C63 i122-i124 |  |
2007 | Chapacase mine, Sierra Cerillos district, Tocopilla, Chile | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.60 Å | (100) |
| 3.49 Å | (100) |
| 3.28 Å | (100) |
| 3.18 Å | (100) |
| 3.08 Å | (100) |
| 4.84 Å | (80) |
| 4.42 Å | (80) |
Geological EnvironmentHide
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Type Occurrence of IraniteHide
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General Appearance of Type Material:
Place of Conservation of Type Material:
University of Pierre and Marie Curie, Paris.
National School of Mines, Paris, France.
The Natural History Museum, London, England, 1969,52.
Geological Setting of Type Material:
Oxidized zone of hydrothermal veins.
Associated Minerals at Type Locality:
Reference:
Bariand, P., Herpin, P. (1963) Une nouvelle espèce minérale: l'iranite, chromate hydraté de plomb. Bulletin de la Société Française de Minéralogie et de Cristallographie: 86: 133-135.
Synonyms of IraniteHide
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Other Language Names for IraniteHide
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Simplified Chinese:水铬铅矿
Traditional Chinese:水鉻鉛礦
Relationship of Iranite to other SpeciesHide
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Other Members of this group:
Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Other InformationHide
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Notes:
Soluble in warm Na2CO3 solution.
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 IraniteHide
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References for IraniteHide
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Reference List:
**Fleischer, Michael, Pabst, Adolf, Mandarino, Joseph A., Chao, George Y., Cabri, Louis, J. (1976) New Mineral Names. American Mineralogist, 61 (1-2) 174-186 **p.186
Yang, Hexiong, Sano, Jennifer L., Eichler, Carla, Downs, Robert T., Costin, Gelu (2007) Iranite, CuPb10(CrO4)6(SiO4)2(OH)2, isomorphous with hemihedrite. Acta Crystallographica Section C Crystal Structure Communications, 63 (12) 122-124 doi:10.1107/s0108270107053449
Localities for IraniteHide
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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.
Locality ListHide
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- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - 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.