Osbornite Mineral Data

Osbornite Mineral Data +

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General Osbornite Information

Chemical Formula:

TiN

Composition:

Molecular Weight = 61.89 gm

Titanium 77.37 % Ti

Nitrogen 22.63 % N

______

100.00 %

Empirical Formula:

TiN

Environment:

Embedded in oldmanite in an achondrite meteorite, as inclusions in corundum, in weathered detritus from a breccia pipe cemented with an alkalic ultramafic cement. Synthetic material used for golden metallic coatings on

IMA Status:

Valid Species (Pre-IMA) 1870

Locality:

In the Bustee meteorite. In Russia, from an undefined locality "near the junction of the Azov block with the Donbas." Link to MinDat.org Location Data.

Name Origin:

For George Osborn, who sent to London the meteorite in which the species was found.

Synonym:

ICSD 1547

PDF 38-1420

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Osbornite Crystallography

Cell Dimensions:

a = 4.235, Z = 4; V = 75.96 Den(Calc)= 5.41

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): 2.12(1), 2.4492(0.72), 1.4997(0.45),1.2789(0.19), 0.9485(0.14), 0.8658(0.12), 1.2245(0.12),

Crystal Structure:

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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, rocksalt structure

Physical Properties of Osbornite

Color:

Golden yellow.

Density:

5.4

Diaphaniety:

Opaque

Habit:

Inclusions - Generally found as inclusions in other minerals.

Habit:

Microscopic Crystals - Crystals visible only with microscopes.

Hardness:

8.5 - Chrysoberyl

Luster:

Metallic

Optical Properties of Osbornite

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Osbornite in Air**
λ	R	∑ R(λ)
440 nm	20.30
460 nm	25.00
480 nm	31.60
500 nm	38.60
520 nm	45.30
540 nm	45.30
560 nm	55.70
580 nm	60.00
600 nm	63.50
620 nm	66.40
640 nm	68.80
660 nm	70.80
680 nm	72.60
700 nm	74.30

**Calculated Relative Intensity Colors of Osbornite in Air**
Relative Intensity	0%	40%	80%	100%	120%	160%	200%	240%	280%	320%
R

Calculated Properties of Osbornite

Electron Density:

r_electron=5.07 gm/cc
note: r_Osbornite=5.41 gm/cc.

Fermion Index

Fermion Index = 0.32552
Boson Index = 0.67448

Photoelectric:

PE_Osbornite= 12.97 barns/electron
U=PE_Osbornite x r_electron= 65.76 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Osbornite is Not Radioactive

Osbornite Classification

Dana Class:

1.1.19.1 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.19)Dana Group

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

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

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

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

Strunz Class:

I/A.10-10 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.10 - Osbornite-Sinoite series

I/A.10-10 Osbornite TiN F m3m 4/m 3 2/m

I/A.10-20 Carlsbergite CrN F m3m 4/m 3 2/m

I/A.10-30 Roaldite (Fe,Ni)4N P 43m 4 3m

I/A.10-40 Siderazot Fe5N2 P 6₃22 6 2 2

I/A.10-45 Nierite Si3N4 P 3₁c 3m

I/A.10-50 Sinoite Si2N2O C mc2₁ mm2

Other Osbornite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic3)

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Osbornite

TiN
Dana No: 1.1.19.1 Strunz No: I/A.10-10
Locality:

Notes: