Mineralogy Database

Getchellite Mineral Data

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General Getchellite Information

Help on Chemical  Formula: Chemical Formula: AsSbS3
Help on Composition: Composition: Molecular Weight = 293.81 gm
   Antimony  42.27 %  Sb
   Arsenic   24.99 %  As
   Sulfur    32.74 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: As0.98Sb1.02S3
Help on Environment: Environment: In an epithermal gold deposit formed in a narrow, steeply-dipping fault zone cutting interbedded Paleozoic (?) shales, argillites, and limestones, near a granodiorite intrusive.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: At the Getchell mine, about 32 km northeast of Golconda, Humboldt Co., Nevada, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the locality.
Help on Name Pronunciation: Name Pronunciation: Getchellite + Pronunciation Say GETCHELLITE
Help on Synonym: Synonym: ICSD 42113
  PDF 21-53

Getchellite Image

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Comments: Bright red getchellite on matrix.
Location: Khaidarkan (Chaidarkan) Sb-Hg deposit, Fergana Valley, Osh District, Kyrgyzstan. Scale: Picture size 7 mm.
© Thomas Witzke / Abraxas-Verlag

Getchellite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3235:1:1.122
Help on Cell Dimensions: Cell Dimensions: a = 11.949, b = 9.028, c = 10.13, Z = 8; beta = 116.15° V = 980.93 Den(Calc)= 3.98
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.89(1), 4.44(0.8), 3.63(0.7),

Physical Properties of Getchellite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Blood red, Dark red, Purple red.
Help on Density: Density: 3.92
Help on Diaphaneity: Diaphaneity: Nearly opaque
Help on Fracture: Fracture: Flexible - Flexible fragments.
Help on Habit: Habit: Micaceous - Platy texture with "flexible" plates.
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: orange red

Optical Properties of Getchellite

Help on Optical Data: Optical Data: Biaxial (+), a=2.72, 2V(Meas)=<46. Dispersion r > v strong.
Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on RL Color: RL Color: Dark blood red, tarnishing to green to purple iridescence..
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Getchellite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   34.80   37.90 
 420 nm   34.20   37.40 
 440 nm   33.60   36.90 
 460 nm   32.70   36.00 
 480 nm   31.80   34.80 
 500 nm   30.70   33.50 
 520 nm   29.50   31.90 
 540 nm   28.10   30.60 
 560 nm   27.00   29.40 
 580 nm   26.20   28.60 
 600 nm   25.70   28.00 
 620 nm   25.20   27.40 
 640 nm   24.90   27.00 
 660 nm   24.50   26.80 
 680 nm   24.20   26.50 
 700 nm   23.80   26.10 
Calculated Relative Intensity Colors of Getchellite in Air
   0%   40%   80% 100% 120% 160% 200% 240% 280% 320% 340%

Calculated Properties of Getchellite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.59 gm/cc
note: Specific Gravity of Getchellite =3.98 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0024556496
Boson Index = 0.9975443504
Help on Photoelectric: Photoelectric: PEGetchellite = 157.76 barns/electron
U=PEGetchellite x rElectron Density= 565.73 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Getchellite is Not Radioactive

Getchellite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.11)where Am Bn Xp, with (m+n):p=2:3
  (02.11.01)Orpiment Group Orpiment As2S3 P 21/n 2/m Getchellite AsSbS3 P 21/a 2/m
Help on  Strunz Class: Strunz Class: 02.FA.35 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O
  02.FA -With As, (Sb), S
02.FA.35 Getchellite AsSbS3 P 21/a 2/m

Other Getchellite Information

Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990, AmMin, v 89, p 696) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Getchellite :
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 - Philatelic Mineralogy
14 - QUT Mineral Atlas
15 - Ruff.Info

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Dana No: Strunz No: 02.FA.35





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