Mineralogy Database

Carlinite Mineral Data

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General Carlinite Information

Help on Chemical  Formula: Chemical Formula: Tl2S
Help on Composition: Composition: Molecular Weight = 440.83 gm
   Thallium  92.73 %  Tl
   Sulfur     7.27 %  S
            100.00 % 
Help on Empirical Formula: Empirical Formula: Tl2S
Help on Environment: Environment: As small grains in brecciated fragments of carbonaceous limestone, as a result of epithermal mineralization.
Help on IMA Status: IMA Status: Approved IMA 1975
Help on Locality: Locality: From the east pit of the Carlin mine, Eureka Co., Nevada, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For the Carlin gold deposit, Nevada, USA.
Help on Synonym: Synonym: ICSD 42713
  PDF 29-1344

Carlinite Image

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Comments: B&W image of carlinite fragments (opaque grains), with some quartz (transparent gralns. (AmMin, v60:559).
Location: Carbonaceous limestones exposed in the east pit of ihe Carlin mine, Nevada, USA. Scale: See Image.
© American Mineralogist

Carlinite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.49958
Help on Cell Dimensions: Cell Dimensions: a = 12.12, c = 18.175, Z = 27; V = 2,312.12 Den(Calc)= 8.55
Help on Crystal System: Crystal System: Trigonal - Pyramidal H-M Symbol (3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.03(1), 2.29(0.33), 1.749(0.3),

Physical Properties of Carlinite

Help on Cleavage: Cleavage: {0001} Perfect
Help on Color: Color: Dark gray, Black.
Help on Density: Density: 8.1
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Metallic - Dull

Optical Properties of Carlinite

Help on Optical Data: Optical Data: NCalc= 1.95 - from Gladstone-Dale relationship (KC = 0.1108) where Ncalc=Dcalc*KC+1
NCalc= 1.9 - from Gladstone-Dale relationship (KC = 0.1108) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Moderate to distinct.
Help on RL Color: RL Color: White with faint bluish cast.
Help on RL Pleochroism: RL Pleochroism: Brownish gray to bluish gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Carlinite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   39.60   41.30 
 546 nm   38.80   40.10 
 589 nm   39.20   40.60 
 650 nm   40.50   42.00 
Calculated Relative Intensity Colors of Carlinite in Air
   0%   30%   60%   90% 100% 120% 150% 180% 210% 230%

Calculated Properties of Carlinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.90 gm/cc
note: Specific Gravity of Carlinite =8.55 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0005455472
Boson Index = 0.9994544528
Help on Photoelectric: Photoelectric: PECarlinite =1,689.30 barns/electron
U=PECarlinite x rElectron Density=11664.02 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Carlinite is Not Radioactive

Carlinite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.04)where Am Bn Xp, with (m+n):p=2:1
  (02.04.13)Dana Group Carlinite Tl2S R 3 3
Help on  Strunz Class: Strunz Class: 02.BD.25 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.B - Metal Sulfides, M:S > 1:1 (mainly 2:1)
  02.BD -With Hg, Tl
02.BD.25 Carlinite Tl2S R 3 3

Other Carlinite 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 Carlinite :
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.BD.25





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