Mineralogy Database

Qusongite Mineral Data

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General Qusongite Information

Help on Chemical  Formula: Chemical Formula: WC
Help on Composition: Composition: Molecular Weight = 197.91 gm
   Chromium   0.53 %  Cr
   Tungsten  93.45 %  W
   Carbon     6.02 %  C
            100.00 % 
Help on Empirical Formula: Empirical Formula: WCr0.02C0.99
Help on Environment: Environment: Heavy mineral concentrate from crushed chromite ore. Probable mantle origin.
Help on IMA Status: IMA Status: Approved IMA 2007 (Dana # Added)
Help on Locality: Locality: Luobusa mine, Qusong County, Tibet, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Synonym: Synonym: IMA2007-034
  Tungsten Carbide

Qusongite Image

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Comments: BSE image of qusongite (1, 2) and Cr2O3 (3, 4). The high hardness of qusongite shows up in the polished section as relief between the two minerals (AmMin, v94:389.
Location: Heavy mineral concentrate from chromite ores from the Luobusa ophiolite, Qusong County, Tibet, China. Scale: See Image.
© American Mineralogist

Qusongite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.97553
Help on Cell Dimensions: Cell Dimensions: a = 2.902, c = 2.831, Z = 1; V = 20.65 Den(Calc)= 15.91
Help on Crystal System: Crystal System: Hexagonal - Ditrigonal Dipyramidal H-M Symbol (6 m2) Space Group: P 6 2m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.511(0.94), 1.878(0.9), 2.833(0.44),1.291(0.36), 1.449(0.25), 0.9008(0.23), 1.149(0.23), 1.233(0.22),

Physical Properties of Qusongite

Help on Cleavage: Cleavage: None
Help on Color: Color: Steel gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 9.5 - Silicon Carbide
Help on Luster: Luster: Metallic
Help on Streak: Streak: black

Optical Properties of Qusongite

Help on RL Anisotrophism: RL Anisotrophism: Medium from deep gray to light brown.
Help on RL Color: RL Color: Steel gray with internal reflections.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Qusongite in Air
λ R  ∑ R(λ) 
 400 nm   40.54   
 420 nm   36.55 
 440 nm   35.19 
 460 nm   38.28 
 470 nm   36.41 
 480 nm   38.95 
 500 nm   39.39 
 520 nm   41.42 
 540 nm   36.00 
 546 nm   38.10 
 560 nm   43.86 
 580 nm   42.21 
 589 nm   42.47 
 600 nm   42.79 
 620 nm   42.90 
 640 nm   43.26 
 650 nm   45.16 
 660 nm   45.17 
 680 nm   45.04 
 700 nm   38.61 
Calculated Relative Intensity Colors of Qusongite in Air
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240%

Calculated Properties of Qusongite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=13.0 gm/cc
note: Specific Gravity of Qusongite =15.9 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.13
Boson Index = 0.87
Help on Photoelectric: Photoelectric: PEQusongite =1,233.78 barns/electron
U=PEQusongite x rElectron Density=16043.30 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Qusongite is Not Radioactive

Qusongite Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.25)Dana Group Qusongite! WC P 6 2m 6 m2
Help on  Strunz Class: Strunz Class: 01.BA.25 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.25 Qusongite! WC P 6 2m 6 m2

Other Qusongite Information

Help on References: References: NAME( AmMin v94:387) PHYS. PROP.(AmMin v94:387) OPTIC PROP.(AmMin v94:387)
Help on See Also: See Also: Links to other databases for Qusongite :
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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Dana No: Strunz No: 01.BA.25





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