Shandite Mineral Data + Say SHANDITE

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General Shandite Information

Help on Chemical  Formula: Chemical Formula: Pb2Ni3S2
Help on Composition: Composition: Molecular Weight = 654.60 gm
   Nickel  26.90 %  Ni
   Lead    63.31 %  Pb
   Sulfur   9.80 %  S
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: Pb2Ni3S2
Help on Environment: Environment: In serpentine.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1950
Help on Locality: Locality: Trial Harbour, Tasmania, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Samuel James Shand (1882-1957), Scottish petrologist, Columbia University, New York City, New York, USA.
Help on Synonym: Synonym: ICSD 24176
  PDF 26-1287
 

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Shandite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.44941
Help on Cell Dimensions: Cell Dimensions: a = 5.565, c = 13.631, Z = 3; V = 365.59 Den(Calc)= 8.92
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): 2.788(1), 3.943(0.7), 2.276(0.65),
Click Here for Large Shandite Structure Window Crystal Structure:

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Peacock M A , McAndrew J , American Mineralogist , 35 (1950) p.425-439, On parkerite and shandite and the crystal structure of Ni3Pb2S2

 

Physical Properties of Shandite

Help on Cleavage: Cleavage: [1011] Perfect, [1011] Perfect, [1011] Perfect
Help on Color: Color: Brass yellow.
Help on Density: Density: 8.72
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Inclusions - Generally found as inclusions in other minerals.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Metallic
 

Optical Properties of Shandite

Help on RL Anisotrophism: RL Anisotrophism: Strong, in gray-blue and yellow brown.
Help on RL Color: RL Color: Cream-white.
Help on RL Pleochroism: RL Pleochroism: Distinct.
 

Calculated Properties of Shandite

Help on Electron Density: Electron Density:

relectron=7.63 gm/cc
note: rShandite =8.92 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.14367
Boson Index = 0.85633
Help on Photoelectric: Photoelectric:

PEShandite =1,148.72 barns/electron
U=PEShandite x relectron=8,765.73 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Shandite is Not Radioactive

 

Shandite Classification

Help on  Dana Class: Dana Class: 2.3.5.1 (2)Sulfides - Including Selenides and Tellurides
  (2.3)where Am Bn Xp, with (m+n):p=5:2
  (2.3.5)Dana Group
 
2.3.5.1 Shandite Pb2Ni3S2 R 3m 3 2/m
 
2.3.5.2 Rhodplumsite Pb2Rh3S2 R 3m 3 2/m
Help on  Strunz Class: Strunz Class: II/B.12-20 II - Sulfides and sulphosalts
  II/B - Sulfides with metal: sulfur, selenium and tellurium > 1:1, Sulfides with predominant Nickel, Cobalt, Rhodium and Palladium
  II/B.12 - Rhodplumsite - Oregonite series
 
II/B.12-10 Rhodplumsite Pb2Rh3S2 R 3m 3 2/m
 
II/B.12-20 Shandite Pb2Ni3S2 R 3m 3 2/m
 
II/B.12-25 Laflammeite! Pd3Pb2S2 C 2/m 2/m
 
II/B.12-30 Parkerite Ni3(Bi,Pb)2S2 Pmam 2/m 2/m 2/m
 
II/B.12-40 Heazlewoodite Ni3S2 R 32 3 2
 
II/B.12-50 Oregonite Ni2FeAs2 Unk Hex
 

Other Shandite 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 Shandite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 - EUROmin Project 5 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris

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Print or Cut-and-Paste your Shandite Specimen Label here :

Shandite

Pb2Ni3S2
Dana No: 2.3.5.1 Strunz No: II/B.12-20
Locality:

 

Notes:

 

 
   
 
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