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Isovite Mineral Data
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General Isovite Information
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 Chemical Formula: |
(Cr,Fe)23C6 |
| Composition: |
Molecular Weight = 1,249.48 gm |
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Chromium 67.41 % Cr |
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Iron 26.82 % Fe |
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Carbon 5.77 % C |
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______ |
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100.00 % |
| Empirical Formula: |
Cr16.2Fe0+6C6 |
| Environment: |
The chromium dominant analog of haxonite. Found in gold-platinum placer concentrates |
| IMA Status: |
Approved IMA 1996 (Dana # Added) |
| Locality: |
The Is River, near the town of Is, Isovsky district, Middle Urals, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
For the locality. |
| Synonym: |
IMA1996-039 |
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Isovite Image |
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Images:
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Isovite Crystallography
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| Cell Dimensions: |
a = 10.65, Z = 4; V = 1,207.95 Den(Calc)= 6.87 |
| Crystal System: |
Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F m3m |
| X Ray Diffraction: |
By Intensity(I/Io): 2.05(1), 2.17(0.5), 2.38(0.3), |
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Physical Properties of Isovite
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| Color: |
Iron gray. |
| Diaphaneity: |
Opaque |
| Fracture: |
Brittle - Irregular - Very brittle fracture producing irregular fragments |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Hardness: |
8 - Topaz |
| Luster: |
Metallic |
| Magnetism: |
Ferromagnetic |
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Optical Properties of Isovite
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| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Isovite in Air
| λ |
R |
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∑ R(λ) |
| 460 nm |
46.70 |
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| 480 nm |
42.40 |
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| 540 nm |
43.90 |
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| 560 nm |
43.30 |
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| 580 nm |
47.60 |
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| 600 nm |
47.40 |
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| 640 nm |
46.20 |
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| 660 nm |
45.30 |
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Calculated Relative Intensity Colors of Isovite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
| R |
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Calculated Properties of Isovite
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| Electron Density: |
Bulk Density (Electron Density)=6.39 gm/cc
note: Specific Gravity of Isovite =6.87 gm/cc.
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| Fermion Index: |
Fermion Index = 0.07
Boson Index = 0.93 |
| Photoelectric: |
PEIsovite = 23.92 barns/electron
U=PEIsovite x rElectron Density= 152.77 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Isovite is Not Radioactive |
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Isovite Classification
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| Dana Class: |
01.01.16.03 (01)Native Elements |
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(01.01)with metallic elements other than the platinum group |
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(01.01.16)Dana Group |
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01.01.16.01 Cohenite (Fe,Ni,Co)3C Pbnm 2/m 2/m 2/m |
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01.01.16.02 Haxonite (Fe,Ni)23C6 F m3m 4/m 3 2/m |
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01.01.16.03 Isovite! (Cr,Fe)23C6 F m3m 4/m 3 2/m |
| Strunz Class: |
01.BA.10 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) |
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01.B - Metallic Carbides, Silicides, Nitrides and Phosphides |
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01.BA -Carbides |
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01.BA.10 Isovite! (Cr,Fe)23C6 F m3m 4/m 3 2/m |
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01.BA.10 Haxonite (Fe,Ni)23C6 F m3m 4/m 3 2/m |
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Other Isovite Information
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| References: |
NAME( MinRec, V 31, No. 2) PHYS. PROP.(MinRec, V 31, No. 2) OPTIC PROP.(AmMin, v 84, p 1686) |
| See Also: |
Links to other databases for Isovite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Isovite Specimen Label here :
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Isovite
(Cr,Fe)23C6
Dana No: 01.01.16.03 Strunz No: 01.BA.10
Locality:
Notes:
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