Chromatite (original) (raw)
A valid IMA mineral species
About ChromatiteHide
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Specific Gravity:
3.142 (Calculated)
Crystal System:
Tetragonal
Name:
Named by F. J. Eckhardt and W. Heimbach in 1963 for the chemical composition.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1030:2
dfedf6b0-a130-4c84-bf7d-f5f609bce207
IMA Classification of ChromatiteHide
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Classification of ChromatiteHide
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7.FA.10
7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
F : Chromates
A : Without additional anions
35.3.2.1
35 : ANHYDROUS CHROMATES
3 : AXO4
27.2.3
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 |
---|---|---|
Crm | 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 ChromatiteHide
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Pronunciation:
Play | Recorded by | Country |
---|---|---|
Sorry, your browser doesn't support HTML5 audio. | Jolyon Ralph | United Kingdom |
Physical Properties of ChromatiteHide
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Comment:
Low luster reported because of the powdery occurrence
Comment:
Violet crystals (Mo-, Pb-bearing) from Bleiberg, Austria.
Density:
3.142 g/cm3 (Calculated)
Optical Data of ChromatiteHide
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RI values:
_n_ω = 1.810 - 1.850 _n_ε = 1.840 - 1.880
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Chemistry of ChromatiteHide
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Crystallography of ChromatiteHide
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Crystal System:
Tetragonal
Class (H-M):
4/m m m _(_4/_m_2/_m_2/m ) - Ditetragonal Dipyramidal
Cell Parameters:
a = 7.242 Å, c = 6.290 Å
Unit Cell V:
329.89 ų (Calculated from Unit Cell)
Morphology:
Observed as earthy coating at type locality
Crystal StructureHide
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ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0017660 | Chromatite | Clouse J (1932) Investigations on the X-Ray Crystal Structures of Ca Cr O4, Ca Cr O4 * H2 O and Ca Cr O4 * (H2 O)2 _cod_database_code 1010939 Zeitschrift fur Kristallographie 83 161-171 | 1932 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
d-spacing | Intensity |
---|---|
3.62 Å | (100) |
2.88 Å | (20) |
2.68 Å | (50) |
2.56 Å | (10) |
2.38 Å | (20) |
1.85 Å | (40) |
1.81 Å | (20) |
1.50 Å | (10) |
Geological EnvironmentHide
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Type Occurrence of ChromatiteHide
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General Appearance of Type Material:
Geological Setting of Type Material:
In sedimentary rock units at the type location.
Associated Minerals at Type Locality:
Other Language Names for ChromatiteHide
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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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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 ChromatiteHide
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References for ChromatiteHide
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Localities for ChromatiteHide
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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.
Austria | |
---|---|
Carinthia Villach-Land District Bad Bleiberg ⓘ Stefanie Mine | Puttner (1997) |
Israel | |
Southern District (HaDarom District) Tamar Regional Council ⓘ Hatrurim Basin | Shulamit Gross (1977) |
Jordan | |
Amman Governorate Transjordan Plateau Daba-Siwaqa complex Hashem region Lisdan-Siwaga Fault Siwaga Tulul al Hammam ⓘ Unnamed marble quarries | Sokol +9 other references |
Middle East | |
ⓘ Hatrurim Formation | Gross (1977) |
Norway | |
Telemark Porsgrunn Bjørkedalen ⓘ Buer ? | Piilonen et al. (2012) +1 other reference |
Palestine | |
West Bank Jericho Governorate ⓘ Nabi Musa | Sokol et al. (2011) |
Quds Governorate ⓘ Ma'ale Adumim (TL) | Naturwiss. (1963) +1 other reference |
Russia | |
Sverdlovsk Oblast Nizhnii Tagil ⓘ |
Kozlov et al. (2011) |
South Africa | |
Limpopo Waterberg District Municipality Modimolle-Mookgophong Local Municipality Mookgophong ⓘ Waterberg deposit | McDonald et al. (1995) +1 other reference |