Andorite Mineral Data + Say ANDORITE

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General Andorite Information
Help on Chemical Formula: Chemical Formula: PbAgSb3S6
Help on Composition: Composition: Molecular Weight = 872.71 gm
   Silver    12.36 %  Ag
   Antimony  41.85 %  Sb
   Lead      23.74 %  Pb
   Sulfur    22.05 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: PbAgSb3S6
Help on Environment: Environment: Of hydrothermal origin.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1894
Help on Locality: Locality: In the USA, at the Keyser mine, Morey district, Nye Co., Nevada; in the Thompson mine, Darwin district, Inyo Co., California; and at Bear Basin, King Co., Washington. From near Takla L Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Andor von Semsey (1833-1923), a Hungarian nobleman, who was also an amateur mineralogist.
Help on Synonym: Synonym: ICSD 20818
  PDF 35-596
 

Andorite Image

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Andorite

Comments: Metallic, prismatic andorite crystal.
Location: Baie Sprie (Felsobanya), Maramures, Romania. Scale: Size Not Given.
© Lou Perloff / Photo Atlas of Minerals
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Andorite   Ferrokesterite

Comments: Small, tetragonal crystal of gray ferrokesterite (circled in thumbnail) attached on the surface of a larger striated andorite specimen.
Location: San Jose mine, Oruro, Bolivia. Scale: Crystal size 0.2 mm.
© John Veevaert

Andorite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.6779:1:0.2225
Help on Cell Dimensions: Cell Dimensions: a = 13.01, b = 19.19, c = 4.27, Z = 4; V = 1,066.06 Den(Calc)= 5.44
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pmma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.3(1), 2.9(0.8), 3.45(0.4),
Help on Forms: Forms:

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Forms: [ 1 0 1] [ 0 1 0] [ 0 3 1] [ 1 1 1] [ 2 2 1] [ 1 1 0] [ 1 0 0] [ 1 1 2] [ 0 2 1] [ 0 1 1]

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Kawada I , Hellner E , Neues Jahrbuch fur Mineralogie, Monatshefte , 1971 (1971) p.551-560, Die kristallstruktur der pseudozelle (sub cell) von andorit VI (ramdohrit)

 

Physical Properties of Andorite

Help on Cleavage: Cleavage: None
Help on Color: Color: Grayish yellow, Dark gray, Steel gray.
Help on Density: Density: 5.38 - 5.44, Average = 5.41
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3-3.5 - Calcite-Copper Penny
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Nonmagnetic
Help on Streak: Streak: black
 

Optical Properties of Andorite

Help on RL Color: RL Color: White.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Andorite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   39.20   42.30 
   
 420 nm   38.80   42.00 
 440 nm   38.40   41.70 
 460 nm   38.00   41.40 
 480 nm   37.50   41.10 
 500 nm   37.00   40.90 
 520 nm   36.70   40.60 
 540 nm   36.30   40.40 
 560 nm   36.00   40.00 
 580 nm   35.50   39.60 
 600 nm   35.20   39.00 
 620 nm   34.80   38.50 
 640 nm   34.50   38.00 
 660 nm   34.10   37.50 
 680 nm   33.70   37.00 
 700 nm   33.30   36.60 
Calculated Relative Intensity Colors of Andorite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 250%
R1                      
R2                      
 

Calculated Properties of Andorite

Help on Electron Density: Electron Density:

relectron=4.71 gm/cc
note: rAndorite =5.44 gm/cc.
Help on Fermion Index Fermion Index Fermion Index = 0.05412
Boson Index = 0.94588
Help on Photoelectric: Photoelectric:

PEAndorite = 596.64 barns/electron
U=PEAndorite x relectron=2,811.66 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Andorite is Not Radioactive
 

Andorite Classification
Help on Dana Class: Dana Class: 3.4.15.4 (3)Sulfides - Sulfosalts
  (3.4)where z/y > 3 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (3.4.15)Lillianite Group (Orthorhombic, AmBnS6 where A=Pb, Ag, Mn and B=Sb, Bi)
 
3.4.15.1 Lillianite Pb3Bi2S6 Bbmm 2/m 2/m 2/m
 
3.4.15.2 Bursaite Pb5Bi4S11 Bbmm 2/m 2/m 2/m
 
3.4.15.3 Gustavite PbAgBi3S6(?) Bbmm 2/m 2/m 2/m
 
3.4.15.4 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m
 
3.4.15.5 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m
 
3.4.15.6 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m
 
3.4.15.7 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m
 
3.4.15.8 Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m
Help on Strunz Class: Strunz Class: II/E.23-40 II - Sulfides and sulphosalts
  II/E - Sulfosalts (S : As,Sb,Bi = x) Complex Lead-Sulfosalts (Pb-Fe/Mn, Pb-Ag), with predominant Antimon x = 2.3 - 2.0
  II/E.23 - Uchucchacuaite - Roshchinite series
 
II/E.23-10 Uchucchacuaite AgPb3MnSb5S12 P mmm 2/m 2/m 2/m
 
II/E.23-20 Fizelyite Pb14Ag5Sb21S48(?) P 21/n 2/m
 
II/E.23-30 Ramdohrite Ag3Pb6Sb11S24 P 2/n 2/m
 
II/E.23-40 Andorite PbAgSb3S6 Pmma 2/m 2/m 2/m
 
II/E.23-50 Roshchinite Ag19Pb10Sb51S96orPb(Ag,Cu)2(Sb,As)5S10 Pmna 2/m 2/m 2/m
 

Other Andorite 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 Andorite :
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 - HyperPhysics 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris

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Andorite

PbAgSb3S6
Dana No: 3.4.15.4 Strunz No: II/E.23-40
Locality:

 

Notes:

 
 
   
 
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