Isovite
A valid IMA mineral species
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About Isovite
Formula:
(Cr,Fe)23C6
Colour:
Steel gray
Lustre:
Metallic
Hardness:
8
Specific Gravity:
7.4 (Calculated)
Crystal System:
Isometric
Name:
Named for the Isovsky district, that includes the locality.
Type Locality:
This page provides mineralogical data about Isovite.
Unique Identifiers
Mindat ID:
7115
Long-form identifier:
mindat:1:1:7115:0
Similar Names
IMA Classification of Isovite
Approved
Approval year:
1996
First published:
1998
Classification of Isovite
1.BA.10
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
A : Carbides
1 : ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
B : Metallic Carbides, Silicides, Nitrides, Phosphides and Hydrides
A : Carbides
Dana 7th ed.:
1.1.25.2
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Isv | 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 Isovite
Metallic
Colour:
Steel gray
Hardness:
8 on Mohs scale
Hardness:
VHN50=1300 - 1400 kg/mm2 - Vickers
Density:
7.4 g/cm3 (Calculated)
Optical Data of Isovite
Type:
Isotropic
Reflectivity:
| Wavelength | R1 (%) |
|---|---|
| 420nm | 47.6% |
| 440nm | 47.4% |
| 460nm | 46.7% |
| 480nm | 46.2% |
| 500nm | 45.3% |
| 520nm | 44.7% |
| 540nm | 43.9% |
| 560nm | 43.3% |
| 580nm | 43.1% |
| 600nm | 43.6% |
| 620nm | 43.6% |
| 640nm | 43.5% |
| 660nm | 44.4% |
| 680nm | 45.7% |
| 700nm | 46.3% |
Graph shows reflectance levels at different wavelengths (in nm). Peak reflectance is 47.6%.
Chemistry of Isovite
Mindat Formula:
(Cr,Fe)23C6
Elements listed:
Crystallography of Isovite
Crystal System:
Isometric
Class (H-M):
m3m(4/m32/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 10.65(5) Å
Unit Cell V:
1,207.95 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.38 Å | (30) |
| 2.17 Å | (50) |
| 2.05 Å | (100) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 3a: Earth’s earliest Hadean crust | >4.50 |
| 7 : Ultramafic igneous rocks | |
| Near-surface Processes | |
| 26 : Hadean detrital minerals |
Type Occurrence of Isovite
General Appearance of Type Material:
Isometric to angular grains to 0.2mm
Place of Conservation of Type Material:
A. E. Fersman Mineralogical Museum, Moscow, Russia
Geological Setting of Type Material:
Associated with gold, various platinum-group minerals, cinnabar, Cr spinel, and unnamed Cr-Fe minerals, including carbides.
Associated Minerals at Type Locality:
Synonyms of Isovite
Other Language Names for Isovite
Related Minerals - Strunz-mindat Grouping
| 1.BA.05 | Cohenite | Fe3C |
| 1.BA.10 | Haxonite | NiFe22C6 |
| 1.BA.15 | Tongbaite | Cr3C2 |
| 1.BA.20 | Niobocarbide | (Nb,Ta)C |
| 1.BA.20 | Khamrabaevite | (Ti,V,Fe)C |
| 1.BA.20 | Tantalcarbide | TaC |
| 1.BA.25 | Qusongite | WC |
| 1.BA.25 | Zoyashlyukovaite | MoC |
| 1.BA.30 | Yarlongite | Cr4Fe4NiC4 |
| 1.BA.35 | Edscottite | Fe5C2 |
Other Information
Magnetism:
Ferromagnetic
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 Isovite
mindat.org URL:
https://www.mindat.org/min-7115.html
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References for Isovite
Localities for Isovite
Showing 3 localities.
symbol to view information about a locality.
The Locality List
- 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).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| Generalov et al. (1998) +1 other reference |
| |
Syria | |
| Moore et al. (2020) |
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Is River, Nizhnyaya Tura, Sverdlovsk Oblast, Russia