Incaite Mineral Data + Say INCAITE


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General Incaite Information
Help on Chemical Formula: Chemical Formula: Pb4Sn4FeSb2S15
Help on Composition: Composition: Molecular Weight = 2,083.98 gm
   Iron       2.68 %  Fe
   Tin       22.79 %  Sn
   Antimony  11.68 %  Sb
   Lead      39.77 %  Pb
   Sulfur    23.08 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Pb4Sn4Fe2+Sb2S15
Help on Environment: Environment: In hydrothermal Ag-Sn ores.
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: Poopo, Bolivia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Inca people, pre-European rulers of Chile, Bolivia, and Peru.
 

Incaite Image

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Incaite

Comments: Formless gray lump of incaite, sawn on 2 sides. Former Franz Bauer (Munich) collection.
Location: The label says "Mejillones, Chile" which is certainly wrong, but Mejillones is a railhead and port which served exports from Pirquitas Ag-Sn Deposit, Rinconada Department, Jujuy, Argentina. Scale: Lump size 2 mm.
© Richard Dale / Dale Minerals

Incaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =2.9861:1:1.0069
Help on Cell Dimensions: Cell Dimensions: a = 17.29, b = 5.79, c = 5.83, Z = 1; alpha = 90°, beta = 90°, gamma = 90° V = 583.64 Den(Calc)= 5.93
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1 ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.86(1), 2.03(0.8), 3.43(0.7),4.31(0.6), 2.06(0.4), 3.12(0.4), 3.23(0.4), 3.83(0.4),
 

Physical Properties of Incaite

Help on Cleavage: Cleavage: [100] Perfect
Help on Color: Color: Lead gray.
Help on Diaphaniety: Diaphaniety: Opaque
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 2 - Gypsum
Help on Luster: Luster: Metallic
 

Optical Properties of Incaite

Help on RL Anisotrophism: RL Anisotrophism: Distinct in greenish brown and brownish gray.
Help on RL Color: RL Color: Grayish white.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Incaite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 480 nm   29.80   33.70 
   
 540 nm   29.00   33.20 
 600 nm   28.60   32.90 
 640 nm   28.10   32.50 
Calculated Relative Intensity Colors of Incaite in Air
Relative
Intensity		    0%   40%   80% 100% 120% 160% 200% 240% 280% 310%
R1                    
R2                    
 

Calculated Properties of Incaite

Help on Electron Density: Electron Density:

relectron=5.10 gm/cc
note: rIncaite =5.93 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.12806
Boson Index = 0.87194
Help on Photoelectric: Photoelectric:

PEIncaite = 825.20 barns/electron
U=PEIncaite x relectron=4,207.82 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Incaite is Not Radioactive
 

Incaite Classification
Help on Dana Class: Dana Class: 3.1.4.3 (3)Sulfides - Sulfosalts
  (3.1)where z/y > 4 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.1.4)Dana Group
 
3.1.4.1 Cylindrite Pb3Sn4FeSb2S14 P1 1
 
3.1.4.2 Franckeite (Pb,Sn)6FeSn2Sb2S14 P1 1
 
3.1.4.3 Incaite Pb4Sn4FeSb2S15 P1 ? 1
 
3.1.4.4 Potosiite Pb6Sn2FeSb2S14 P 1 ? 1
Help on Strunz Class: Strunz Class: II/C.17-60 II - Sulfides and sulphosalts
  II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
  II/C.17 - Hertzenbergite - Kylindrite series
 
II/C.17-10 Herzenbergite SnS Pbnm 2/m 2/m 2/m
 
II/C.17-20 Stistaite SnSb R 3m 3 2/m
 
II/C.17-30 Mohite Cu2SnS3 P1 1
 
II/C.17-40 Teallite PbSnS2 Pbnm 2/m 2/m 2/m
 
II/C.17-45 Suredaite! PbSnS3 P nma 2/m 2/m 2/m
 
II/C.17-50 Potosiite Pb6Sn2FeSb2S14 P 1 ? 1
 
II/C.17-55 Levyclaudite Pb8Sn7Cu3(Bi,Sb)3S28 A2 ? 2
 
II/C.17-60 Incaite Pb4Sn4FeSb2S15 P1 ? 1
 
II/C.17-70 Franckeite (Pb,Sn)6FeSn2Sb2S14 P1 1
 
II/C.17-80 Cylindrite Pb3Sn4FeSb2S14 P1 1
 

Other Incaite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Incaite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 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 12 -École des Mines de Paris

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Incaite

Pb4Sn4FeSb2S15
Dana No: 3.1.4.3 Strunz No: II/C.17-60
Locality:

 

Notes:

 
 
   
 
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