Mineralogy Database

Allargentum Mineral Data

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General Allargentum Information

Help on Chemical  Formula: Chemical Formula: Ag1-xSbx(x=0.009-0.16)
Help on Composition: Composition: Molecular Weight = 108.01 gm
   Silver    98.87 %  Ag
   Antimony   1.13 %  Sb
            100.00 % 
Help on Empirical Formula: Empirical Formula: Ag0.99Sb0.01
Help on Environment: Environment: Found in high-grade silver ores.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1949
Help on Locality: Locality: Hi-Ho mine, Cobalt, Ontario, Canada Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for 'another' and the Latin 'argentum'.
Help on Name Pronunciation: Name Pronunciation: Allargentum + Pronunciation Say ALLARGENTUM

Allargentum Image

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Comments: Irregular crystalline aggregate grain of allargentum.
Location: Shaft 371, Schlema-Hartenstein area, Erzgebirge, Saxony, Germany. Scale: Specimen size 43 mm.
© Thomas Witzke / Abraxas-Verlag

Allargentum Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.61969
Help on Cell Dimensions: Cell Dimensions: a = 2.945, c = 4.77, Z = 2; V = 35.83 Den(Calc)= 10.01
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Dipyramidal H-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): 2.37(1), 2.252(0.6), 2.548(0.4),

Physical Properties of Allargentum

Help on Color: Color: Silver gray.
Help on Density: Density: 10
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Metallic

Optical Properties of Allargentum

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Allargentum in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   67.00   68.80 
 420 nm   66.50   68.20 
 440 nm   66.00   67.60 
 460 nm   65.90   67.30 
 480 nm   67.10   68.60 
 500 nm   67.40   68.70 
 520 nm   68.90   70.40 
 540 nm   69.50   70.90 
 560 nm   70.20   71.60 
 580 nm   70.50   71.80 
 600 nm   71.00   72.30 
 620 nm   71.70   73.00 
 640 nm   72.10   73.40 
 660 nm   72.60   73.90 
 680 nm   73.10   74.30 
 700 nm   73.80   74.90 
Calculated Relative Intensity Colors of Allargentum in Air
   0%   20%   40%   60%   80% 100% 120% 140%

Calculated Properties of Allargentum

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=8.72 gm/cc
note: Specific Gravity of Allargentum =10.0 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PEAllargentum = 262.48 barns/electron
U=PEAllargentum x rElectron Density=2,288.64 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Allargentum is Not Radioactive

Allargentum Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.02)where Am Bn Xp, with (m+n):p=3:1
  (02.02.01)Dyscrasite Group Dyscrasite Ag3Sb Pm2m mm2 Allargentum Ag1-xSbx(x=0.009-0.16) P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.AA.30 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.A - Simple Sulfides, Selenides, etc
  02.AA -Alloys of metalloids with Cu, Ag, Sn, Au
02.AA.30 Allargentum Ag1-xSbx(x=0.009-0.16) P 63/mmc 6/m 2/m 2/m

Other Allargentum 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 Allargentum :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 02.AA.30





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