Khamrabaevite Mineral Data

General Khamrabaevite Information

Chemical Formula:

(Ti,V,Fe)C

Composition:

Molecular Weight = 61.61 gm

Titanium 46.63 % Ti

Vanadium 24.81 % V

Iron 9.07 % Fe

Carbon 19.50 % C

______

100.00 %

Empirical Formula:

Ti_0.6V⁰⁺_0.3Fe⁰⁺_0.1C

Environment:

In amygdaloidal baasaltic porphyries. On the outer portions of cubic suessite crystals.

IMA Status:

Approved IMA 1984

Locality:

Arashan Mts, Chatkal Ranges, Tadzhikistan. Link to MinDat.org Location Data.

Name Origin:

Named for Ibragim Khamrabaevich Khamrabaeva (1920-), Director, Institute of Geology and Geophysics, Tashkent, Uzbekistan.

Name Pronunciation:

Khamrabaevite + Pronunciation

Synonym:

ICSD 1546

PDF 32-1383

Khamrabaevite Image

Images:

Click Here for Larger Khamrabaevite Image

Khamrabaevite Tistarite

Comments: BSE image showing one tistarite (Ti2O3) grain along with khamrabaevite (TiC) and corundum. The cross marks where the electron back-scattered diffraction pattern (shown in Fig. 4) was collected. (AmMin, v94:841.
Location: From inside a chondrule from the Allende meteorite. Scale: See Image.
© American Mineralogist

Khamrabaevite Crystallography

Cell Dimensions:

a = 4.319, Z = 8; V = 80.57 Den(Calc)= 10.16

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F m3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 1.299(1), 2.163(1), 1.529(0.8),

Crystal Structure:

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Christensen A N , Acta Chemica Scandinavica , A32 (1978) p.89-90, The temperature factor parameters of some transition metal carbides and, nitrides by single crystal X-ray and neutron diffraction, Locality: synthetic

Physical Properties of Khamrabaevite

Cleavage:

None

Color:

Dark gray.

Density:

10.01

Diaphaneity:

Opaque

Fracture:

Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern.

Habit:

Encrustations - Forms crust-like aggregates on matrix.

Hardness:

9-9.5

Luster:

Metallic

Optical Properties of Khamrabaevite

Optical Data:

Isotropic.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Khamrabaevite in Air**
λ	R	∑ R(λ)
440 nm	46.20
460 nm	46.40
500 nm	47.20
520 nm	47.20
540 nm	47.20
560 nm	47.40
580 nm	47.50
600 nm	47.70
620 nm	47.90
640 nm	48.40
660 nm	49.70
680 nm	50.30
700 nm	50.60

**Calculated Relative Intensity Colors of Khamrabaevite in Air**
Relative Intensity	0%	20%	40%	60%	80%	100%	120%	140%	160%	180%	190%
R

Calculated Properties of Khamrabaevite

Electron Density:

Bulk Density (Electron Density)=9.47 gm/cc
note: Specific Gravity of Khamrabaevite =10.2 gm/cc.

Fermion Index:

Fermion Index = 0.06
Boson Index = 0.94

Photoelectric:

PE_{Khamrabaevite}= 15.47 barns/electron
U=PE_{Khamrabaevite} x rElectron Density= 146.41 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Khamrabaevite is Not Radioactive

Khamrabaevite Classification

Dana Class:

01.01.19.02 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.19)Osbornite group carbides and nitrides

01.01.19.01 Osbornite TiN F m3m 4/m 3 2/m

01.01.19.02 Khamrabaevite (Ti,V,Fe)C F m3m 4/m 3 2/m

01.01.19.03 Niobocarbide! (Nb,Ta)C F m3m 4/m 3 2/m

01.01.19.04 Tantalcarbide! TaC F m3m 4/m 3 2/m

Strunz Class:

01.BA.20 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.B - Metallic Carbides, Silicides, Nitrides and Phosphides

01.BA -Carbides

01.BA.20 Khamrabaevite (Ti,V,Fe)C F m3m 4/m 3 2/m

01.BA.20 Niobocarbide! (Nb,Ta)C F m3m 4/m 3 2/m

01.BA.20 Tantalcarbide! TaC F m3m 4/m 3 2/m

Other Khamrabaevite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)

See Also:

Links to other databases for Khamrabaevite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

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Print or Cut-and-Paste your Khamrabaevite Specimen Label here :

Khamrabaevite

(Ti,V,Fe)C
Dana No: 01.01.19.02 Strunz No: 01.BA.20
Locality:

Notes: