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Kawazulite Mineral Data
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General Kawazulite Information
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 Chemical Formula: |
Bi2(Te,Se,S)3 |
| Composition: |
Molecular Weight = 728.32 gm |
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Bismuth 57.39 % Bi |
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Tellurium 31.54 % Te |
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Selenium 9.76 % Se |
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Sulfur 1.32 % S |
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______ |
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100.00 % |
| Empirical Formula: |
Bi2Te1.8Se0.9S0.3 |
| Environment: |
Of hydrothermal origin, in a quartz vein. |
| IMA Status: |
Approved IMA 1970 |
| Locality: |
In the Kawazu mine, Shizuoka Prefecture, Japan. Link to MinDat.org Location Data. |
| Name Origin: |
For the Kawazu mine, Japan. |
| Name Pronunciation: |
Kawazulite + Pronunciation  |
| Synonym: |
ICSD 42543 |
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PDF 29-247 |
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Kawazulite Image |
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Images:
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Kawazulite
Comments: Sparse tin-white metallic kawazulite vein in quartz.
Location: Lone Pine, New Mexico, USA.
Scale: Specimen Size 2.5x4 cm.
© Diederik Visser |
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Kawazulite Crystallography
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| Axial Ratios: |
a:c = 1:6.99528 |
| Cell Dimensions: |
a = 4.24, c = 29.66, Z = 3; V = 461.78 Den(Calc)= 7.86 |
| Crystal System: |
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m |
| X Ray Diffraction: |
By Intensity(I/Io): 3.12(1), 2.31(0.5), 4.92(0.4), |
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Physical Properties of Kawazulite
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| Cleavage: |
{0001} Perfect |
| Color: |
Silver white, Tin white. |
| Density: |
7.79 |
| Diaphaneity: |
Opaque |
| Fracture: |
Flexible - Flexible fragments. |
| Hardness: |
1.5 - Between Talc and Gypsum |
| Luster: |
Metallic |
| Streak: |
steel gray |
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Optical Properties of Kawazulite
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| Optical Data: |
NCalc= 2.39 - from Gladstone-Dale relationship (KC = 0.1772) where Ncalc=Dcalc*KC+1
NCalc= 2.38 - from Gladstone-Dale relationship (KC = 0.1772) where Ncalc=Dmeas*KC+1
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| RL Anisotrophism: |
Strong, bluish gray to brownish gray to gray. |
| RL Pleochroism: |
Pinkish creamy white to white with creamy tint. |
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Calculated Properties of Kawazulite
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| Electron Density: |
Bulk Density (Electron Density)=6.37 gm/cc
note: Specific Gravity of Kawazulite =7.86 gm/cc.
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| Fermion Index: |
Fermion Index = 0.03
Boson Index = 0.97 |
| Photoelectric: |
PEKawazulite =1,267.95 barns/electron
U=PEKawazulite x rElectron Density=8,073.31 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kawazulite is Not Radioactive |
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Kawazulite Classification
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| Dana Class: |
02.11.07.05 (02)Sulfides - Including Selenides and Tellurides |
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(02.11)where Am Bn Xp, with (m+n):p=2:3 |
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(02.11.07)Tetradymite Group (Trigonal: R-3m) |
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02.11.07.01 Tetradymite Bi2Te2S R 3m 3 2/m |
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02.11.07.02 Tellurobismuthite Bi2Te3 R 3m 3 2/m |
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02.11.07.03 Tellurantimony Sb2Te3 R 3m 3 2/m |
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02.11.07.04 Paraguanajuatite Bi2(Se,S)3 R 3m 3 2/m |
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02.11.07.05 Kawazulite Bi2(Te,Se,S)3 R 3m 3 2/m |
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02.11.07.06 Skippenite Bi2Se2(Te,S) R 3m 3 2/m |
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02.11.07.07 Vihorlatite! Bi24Se17Te4 P 3m1 3 2/m |
| Strunz Class: |
02.DC.05c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.D - Metal Sulfides, M:S = 3:4 and 2:3 |
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02.DC -Variable M:S |
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02.DC.05c Kawazulite Bi2(Te,Se,S)3 R 3m 3 2/m |
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02.DC.05c Paraguanajuatite Bi2(Se,S)3 R 3m 3 2/m |
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02.DC.05c Skippenite Bi2Se2(Te,S) R 3m 3 2/m |
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02.DC.05c Tetradymite Bi2Te2S R 3m 3 2/m |
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02.DC.05c Tellurantimony Sb2Te3 R 3m 3 2/m |
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02.DC.05c Tellurobismuthite Bi2Te3 R 3m 3 2/m |
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Other Kawazulite Information
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| References: |
NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Kawazulite :
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 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST
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Print or Cut-and-Paste your Kawazulite Specimen Label here :
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Kawazulite
Bi2(Te,Se,S)3
Dana No: 02.11.07.05 Strunz No: 02.DC.05c
Locality:
Notes:
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