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Qusongite Mineral Data
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General Qusongite Information
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 Chemical Formula: |
WC |
| Composition: |
Molecular Weight = 197.91 gm |
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Chromium 0.53 % Cr |
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Tungsten 93.45 % W |
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Carbon 6.02 % C |
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______ |
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100.00 % |
| Empirical Formula: |
WCr0.02C0.99 |
| Environment: |
Heavy mineral concentrate from crushed chromite ore. Probable mantle origin. |
| IMA Status: |
Approved IMA 2007 (Dana # Added) |
| Locality: |
Luobusa mine, Qusong County, Tibet, China. Link to MinDat.org Location Data. |
| Name Origin: |
Named after the locality. |
| Synonym: |
IMA2007-034 |
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Tungsten Carbide |
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Qusongite Image |
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Images:
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Qusongite
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 |
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Qusongite Crystallography
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| Axial Ratios: |
a:c = 1:0.97553 |
| Cell Dimensions: |
a = 2.902, c = 2.831, Z = 1; V = 20.65 Den(Calc)= 15.91 |
| Crystal System: |
Hexagonal - Ditrigonal Dipyramidal H-M Symbol (6 m2) Space Group: P 6 2m |
| 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), |
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Physical Properties of Qusongite
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| Cleavage: |
None |
| Color: |
Steel gray. |
| Diaphaneity: |
Opaque |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Hardness: |
9.5 - Silicon Carbide |
| Luster: |
Metallic |
| Streak: |
black |
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Optical Properties of Qusongite
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| RL Anisotrophism: |
Medium from deep gray to light brown. |
| RL Color: |
Steel gray with internal reflections. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Qusongite in Air
| λ |
R |
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∑ R(λ) |
| 400 nm |
40.54 |
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| 420 nm |
36.55 |
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| 440 nm |
35.19 |
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| 460 nm |
38.28 |
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| 470 nm |
36.41 |
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| 480 nm |
38.95 |
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| 500 nm |
39.39 |
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| 520 nm |
41.42 |
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| 540 nm |
36.00 |
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| 546 nm |
38.10 |
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| 560 nm |
43.86 |
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| 580 nm |
42.21 |
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| 589 nm |
42.47 |
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| 600 nm |
42.79 |
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| 620 nm |
42.90 |
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| 640 nm |
43.26 |
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| 650 nm |
45.16 |
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| 660 nm |
45.17 |
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| 680 nm |
45.04 |
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| 700 nm |
38.61 |
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Calculated Relative Intensity Colors of Qusongite in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
210% |
240% |
| R |
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Calculated Properties of Qusongite
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| Electron Density: |
Bulk Density (Electron Density)=13.0 gm/cc
note: Specific Gravity of Qusongite =15.9 gm/cc.
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| Fermion Index: |
Fermion Index = 0.13
Boson Index = 0.87 |
| Photoelectric: |
PEQusongite =1,233.78 barns/electron
U=PEQusongite x rElectron Density=16043.30 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Qusongite is Not Radioactive |
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Qusongite Classification
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| Dana Class: |
01.01.25.01 (01)Native Elements |
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(01.01)with metallic elements other than the platinum group |
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(01.01.25)Dana Group |
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01.01.25.01 Qusongite! WC P 6 2m 6 m2 |
| Strunz Class: |
01.BA.25 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.25 Qusongite! WC P 6 2m 6 m2 |
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Other Qusongite Information
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| References: |
NAME( AmMin v94:387) PHYS. PROP.(AmMin v94:387) OPTIC PROP.(AmMin v94:387) |
| 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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Qusongite
WC
Dana No: 01.01.25.01 Strunz No: 01.BA.25
Locality:
Notes:
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