Joseite Mineral Data + Say JOSEITE

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General Joseite Information
Help on Chemical Formula: Chemical Formula: Bi4(S,Te)3
Help on Composition: Composition: Molecular Weight = 1,003.77 gm
   Bismuth    83.28 %  Bi
   Tellurium   9.53 %  Te
   Sulfur      7.19 %  S
             ______ 
             100.00 % 
Help on Empirical Formula: Empirical Formula: Bi4S2.25Te0.75
Help on Environment: Environment: In granular limestone.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1853
Help on Locality: Locality: From San Jose, near Marianna, Minas Gerais, Brazil. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the locality at San Jose in Brazil.
 

Joseite Image

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Joseite

Comments: Milky quartz matrix with a 15 mm long group of metallic joseite crystals.
Location: Caldbeck Fells, Cumbria, England, UK. Scale: 5x3.5x2.5 cm.
© John Betts - Fine Minerals

Joseite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:9.35764
Help on Cell Dimensions: Cell Dimensions: a = 4.25, c = 39.77, Z = 3; V = 622.11 Den(Calc)= 8.04
Help on Crystal System: Crystal System: Trigonal - Hexagonal ScalenohedralH-M Symbol (3 2/m) Space Group: R 3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.08(1), 2.11(0.5), 2.24(0.5),
 

Physical Properties of Joseite

Help on Color: Color: Gray, Grayish black.
Help on Density: Density: 8.1
Help on Diaphaniety: Diaphaniety: Opaque
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Metallic
 

Optical Properties of Joseite

Help on RL Anisotrophism: RL Anisotrophism: Nearly isotropic in basal sections, else moderately anisotropic greenish gray to dark greenish gray.
Help on RL Color: RL Color: White.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Joseite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   57.20   58.60 
   
 420 nm   56.60   58.40 
 440 nm   56.00   58.20 
 460 nm   55.70   58.30 
 480 nm   55.60   58.50 
 500 nm   55.70   59.00 
 520 nm   56.00   59.40 
 540 nm   56.20   60.00 
 560 nm   56.30   60.60 
 580 nm   56.30   61.10 
 600 nm   56.30   61.40 
 620 nm   56.30   61.50 
 640 nm   56.20   61.60 
 660 nm   56.20   61.50 
 680 nm   56.00   61.40 
 700 nm   55.90   61.10 
Calculated Relative Intensity Colors of Joseite in Air
Relative
Intensity		    0%   20%   40%   60%   80% 100% 120% 140% 160%
R1                  
R2                  
 

Calculated Properties of Joseite

Help on Electron Density: Electron Density:

relectron=6.52 gm/cc
note: rJoseite =8.04 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.00815
Boson Index = 0.99185
Help on Photoelectric: Photoelectric:

PEJoseite =1,689.13 barns/electron
U=PEJoseite x relectron=11013.07 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Joseite is Not Radioactive
 

Joseite Classification
Help on Dana Class: Dana Class: 2.6.2.1 (2)Sulfides - Including Selenides and Tellurides
  (2.6)where Am Bn Xp, with (m+n):p=4:3
  (2.6.2)Joseite Group (Trigonal: R3¯m)
 
2.6.2.1 Joseite Bi4(S,Te)3 R 3m 3 2/m
 
2.6.2.2 Joseite-B Bi4(S,Te)3 R 3m 3 2/m
 
2.6.2.3 Ikunolite Bi4(S,Se)3 R 3m 3 2/m
 
2.6.2.4 Laitakarite Bi4(Se,S)3 R 3m 3 2/m
 
2.6.2.5 Pilsenite Bi4Te3 R 3m 3 2/m
 
2.6.2.6 Poubaite PbBi2Se2(Te,S)2 R 3m 3 2/m
 
2.6.2.7 Rucklidgeite (Bi,Pb)3Te4 R 3m 3 2/m
 
2.6.2.8 Babkinite! Pb2Bi2(S,Se)3 P 3,P 3m Trig
Help on Strunz Class: Strunz Class: II/D.11-30 II - Sulfides and sulphosalts
  II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold
  II/D.11 - Tetradymite group, Ikunolite - Joseite-B series
 
II/D.11-10 Ikunolite Bi4(S,Se)3 R 3m 3 2/m
 
II/D.11-20 Laitakarite Bi4(Se,S)3 R 3m 3 2/m
 
II/D.11-30 Joseite Bi4(S,Te)3 R 3m 3 2/m
 
II/D.11-35 Joseite-B Bi4(S,Te)3 R 3m 3 2/m
 
II/D.11-40 Pilsenite Bi4Te3 R 3m 3 2/m
 

Other Joseite Information
Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Joseite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas

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Joseite

Bi4(S,Te)3
Dana No: 2.6.2.1 Strunz No: II/D.11-30
Locality:

 

Notes:

 
 
   
 
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