Chromferide (original) (raw)
A valid IMA mineral species
About ChromferideHide
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Specific Gravity:
6.69 (Calculated)
Name:
For the chemical composition.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1035:7
ac88aa37-54ca-489f-9ec9-ac43287e27ec
IMA Classification of ChromferideHide
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Classification of ChromferideHide
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1.AE.15
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
A : Metals and Intermetallic Alloys
E : Iron-chromium family
1.1.12.2
1 : NATIVE ELEMENTS AND ALLOYS
1 : Metals, other than the Platinum Group
1.58
1 : Elements and Alloys (including the arsenides, antimonides and bismuthides of Cu, Ag and Au)
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 |
|---|---|---|
| Cfe | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of ChromferideHide
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Hardness:
VHN100=260 kg/mm2 - Vickers
Density:
6.69 g/cm3 (Calculated)
Optical Data of ChromferideHide
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Reflectivity:
| Wavelength | R |
|---|---|
| 440nm | 50.4% |
| 480nm | 50.9% |
| 520nm | 53.0% |
| 560nm | 56.5% |
| 600nm | 57.9% |
| 640nm | 59.0% |
| 680nm | 60.7% |
| 700nm | 60.8% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 60.8%.
Chemistry of ChromferideHide
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Mindat Formula:
Fe3Cr1-x (x=0.6)
Crystallography of ChromferideHide
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Class (H-M):
m_3_m _(_4/_m_32/m ) - Hexoctahedral
Cell Parameters:
a = 2.8959(5) Å
Unit Cell V:
24.29 ų (Calculated from Unit Cell)
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.02 Å | (100) |
| 1.16 Å | (100) |
| 1.43 Å | (80) |
| 1.01 Å | (70) |
| 1.28 Å | (50) |
| 2.87 Å | (20) |
| 1.656 Å | (10) |
Geological EnvironmentHide
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Type Occurrence of ChromferideHide
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Place of Conservation of Type Material:
Geological Setting of Type Material:
Synonyms of ChromferideHide
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Other Language Names for ChromferideHide
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Simplified Chinese:方铬铁矿
Traditional Chinese:方鉻鐵礦
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 ChromferideHide
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References for ChromferideHide
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Reference List:
Hawthorne, Frank C., Burke, Ernst A. J., Ercit, T. Scott, Grew, Edward S., Grice, Joel D., Jambor, John L., Puziewicz, Jacek, Roberts, Andrew C., Vanko, David A. (1988) New Mineral Names. American Mineralogist, 73 (1-2) 189-199
Localities for ChromferideHide
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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.