Stumpflite Mineral Data

Stumpflite Mineral Data
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General Stumpflite Information

Help on Chemical Formula: Chemical Formula: Pt(Sb,Bi)
Help on Composition: Composition: Molecular Weight = 338.64 gm
   Bismuth   15.43 %  Bi
   Antimony  26.96 %  Sb
   Platinum  57.61 %  Pt
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: PtSb0.75Bi0.25
Help on Environment: Environment: In platinum concentrates from an ultramafic pipe deposit intergrown with geversite.
Help on IMA Status: IMA Status: Approved IMA 1972
Help on Locality: Locality: Driekop mine, Transvaal, South Africa Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eugen Friedrich Stumpfl (1931-), Mineralogist, Mining University Leoben, Austria.
Help on Name Pronunciation: Name Pronunciation: Stumpflite + Pronunciation Say STUMPFLITE
Help on Synonym: Synonym: ICSD 42547
  PDF 25-1482
 

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Stumpflite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.31832
Help on Cell Dimensions: Cell Dimensions: a = 4.175, c = 5.504, Z = 2; V = 83.08 Den(Calc)= 13.54
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.192(1), 3.027(1), 2.088(0.8),
Click Here for Large Stumpflite Structure Window Crystal Structure:

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drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
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Wyckoff R W G , Crystal Structures , 1 (1963) p.85-237, Second edition. Interscience Publishers, New York, New York, Note: ideal nickel arsenide structure

 

Physical Properties of Stumpflite

Help on Cleavage: Cleavage: None
Help on Color: Color: Silver white.
Help on Density: Density: 13.52
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Metallic
 

Optical Properties of Stumpflite

Help on RL Anisotrophism: RL Anisotrophism: Strong, in brownish yellow.
Help on RL Color: RL Color: Cream.
Help on RL Pleochroism: RL Pleochroism: Perceptible.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Stumpflite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   42.70   46.60 
   
 420 nm   46.00   49.40 
 440 nm   49.30   52.20 
 460 nm   52.10   54.90 
 480 nm   54.50   57.30 
 500 nm   56.60   59.40 
 520 nm   58.10   61.30 
 540 nm   59.30   63.00 
 560 nm   60.20   64.40 
 580 nm   61.20   65.60 
 600 nm   62.10   66.60 
 620 nm   62.90   67.50 
 640 nm   63.60   68.50 
 660 nm   64.40   69.20 
 680 nm   64.90   70.00 
 700 nm   65.20   70.60 
Calculated Relative Intensity Colors of Stumpflite in Air
Relative
Intensity		    0%   20%   40%   60%   80% 100% 120% 140% 160% 180%
R1                    
R2                    
 

Calculated Properties of Stumpflite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=11.0 gm/cc
note: Specific Gravity of Stumpflite =13.5 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.19
Boson Index = 0.81
Help on Photoelectric: Photoelectric: PEStumpflite =1,327.08 barns/electron
U=PEStumpflite x rElectron Density=14538.88 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Stumpflite is Not Radioactive
 

Stumpflite Classification
Help on Dana Class: Dana Class: 02.08.11.08 (02)Sulfides - Including Selenides and Tellurides
  (02.08)where Am Bn Xp, with (m+n):p=1:1
  (02.08.11)Nickeline Group (Hexagonal: P63/mmc)
 
02.08.11.01 Nickeline NiAs P 63/mmc 6/m 2/m 2/m
 
02.08.11.02 Breithauptite NiSb P 63/mmc 6/m 2/m 2/m
 
02.08.11.03 Sederholmite NiSe P 63/mmc 6/m 2/m 2/m
 
02.08.11.04 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 63/mmc 6/m 2/m 2/m
 
02.08.11.05 Sudburyite (Pd,Ni)Sb P 63/mmc 6/m 2/m 2/m
 
02.08.11.06 Kotulskite Pd(Te,Bi) P 63/mmc 6/m 2/m 2/m
 
02.08.11.07 Sobolevskite PdBi P 63/mmc 6/m 2/m 2/m
 
02.08.11.08 Stumpflite Pt(Sb,Bi) P 63/mmc 6/m 2/m 2/m
 
02.08.11.09 Langisite (Co,Ni)As P 63/mmc 6/m 2/m 2/m
 
02.08.11.10 Freboldite CoSe P 63/mmc 6/m 2/m 2/m
 
02.08.11.11 Achavalite! FeSe P 63/mmc 6/m 2/m 2/m
 
02.08.11.12 Sorosite! Cu(Sn,Sb) P 63/mmc 6/m 2/m 2/m
 
02.08.11.13 Vavrinite! Ni2SbTe2 P 63/mmc 6/m 2/m 2/m
Help on Strunz Class: Strunz Class: 02.CC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CC -With Ni, Fe, Co, PGE, etc.
 
02.CC.05 Achavalite FeSe P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Breithauptite NiSb P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Freboldite CoSe P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Langisite (Co,Ni)As P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Jaipurite* CoS P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Kotulskite Pd(Te,Bi) P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Nickeline NiAs P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Zlatogorite! CuNiSb2 P 3m1 3 2/m
 
02.CC.05 Sederholmite NiSe P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Stumpflite Pt(Sb,Bi) P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Sudburyite (Pd,Ni)Sb P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Sobolevskite PdBi P 63/mmc 6/m 2/m 2/m
 

Other Stumpflite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Stumpflite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

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Stumpflite

Pt(Sb,Bi)
Dana No: 02.08.11.08 Strunz No: 02.CC.05
Locality:

 

Notes: