Mineralogy Database

Trogtalite Mineral Data

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General Trogtalite Information

Help on Chemical  Formula: Chemical Formula: CoSe2
Help on Composition: Composition: Molecular Weight = 216.85 gm
   Cobalt    27.18 %  Co
   Selenium  72.82 %  Se
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: CoSe2
Help on Environment: Environment: Intergrown with clausthalite. Dimorphous with hastite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1955
Help on Locality: Locality: Steinbruch Trogtal quarry, Lautenthal, Harz,, Germany Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Trogtalite + Pronunciation Say TROGTALITE
Help on Synonym: Synonym: ICSD 40331
  PDF 9-234
 

Trogtalite Image

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  Trogtalite

Comments: Polished section (PPL). Grains of anhedral trogtalite (Tgt) partly replaced by a veinlet of sulfur-bearing berzelianite (Brz) in malachite-cemented (Mal) quartz (Qtz). (CanMin, v46:219).
Location: Thrust-Slice '2400' of the Musonoi Extension mine, Katanga, Democratic Republic of Congo. Scale: See Image.
© Canadian Mineralogist

Trogtalite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 5.87, Z = 4; V = 202.26 Den(Calc)= 7.12
Help on Crystal System: Crystal System: Isometric - Diploidal H-M Symbol (2/m 3) Space Group: P a3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.39(1), 2.62(1), 1.765(0.9),
 

Physical Properties of Trogtalite

Help on Color: Color: Pink violet.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Habit: Habit: Irregular Grains - Occurs as splotchy, anhedral crystals forming inclusions in other minerals or rocks.
Help on Hardness: Hardness: 7 - Quartz
Help on Luster: Luster: Metallic
 

Optical Properties of Trogtalite

Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Trogtalite in Air
λ R  ∑ R(λ) 
 400 nm   42.50   
 420 nm   42.20 
 440 nm   41.90 
 460 nm   41.40 
 480 nm   41.00 
 500 nm   40.80 
 520 nm   41.10 
 540 nm   41.30 
 560 nm   42.00 
 580 nm   42.60 
 600 nm   43.30 
 620 nm   43.90 
 640 nm   44.50 
 660 nm   45.20 
 680 nm   45.60 
 700 nm   45.80 
Calculated Relative Intensity Colors of Trogtalite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 220%
R                    
 

Calculated Properties of Trogtalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.24 gm/cc
note: Specific Gravity of Trogtalite =7.12 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PETrogtalite = 68.46 barns/electron
U=PETrogtalite x rElectron Density= 427.04 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Trogtalite is Not Radioactive
 

Trogtalite Classification

Help on  Dana Class: Dana Class: 02.12.01.05 (02)Sulfides - Including Selenides and Tellurides
  (02.12)where Am Bn Xp, with (m+n):p=1:2
  (02.12.01)Pyrite Group (Isometric: Pa3)
 
02.12.01.01 Pyrite FeS2 P a3 2/m 3
 
02.12.01.02 Vaesite NiS2 P a3 2/m 3
 
02.12.01.03 Cattierite CoS2 P a3 2/m 3
 
02.12.01.04 Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3
 
02.12.01.05 Trogtalite CoSe2 P a3 2/m 3
 
02.12.01.06 Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3
 
02.12.01.07 Fukuchilite Cu3FeS8 P a3 2/m 3
 
02.12.01.08 Krutaite CuSe2 P a3 2/m 3
 
02.12.01.09 Hauerite MnS2 P a3 2/m 3
 
02.12.01.10 Laurite RuS2 P a3 2/m 3
 
02.12.01.11 Aurostibite AuSb2 P a3 2/m 3
 
02.12.01.12 Krutovite NiAs2 P a3 2/m 3
 
02.12.01.13 Sperrylite PtAs2 P a3 2/m 3
 
02.12.01.14 Geversite Pt(Sb,Bi)2 P a3 2/m 3
 
02.12.01.15 Insizwaite Pt(Bi,Sb)2 P a3 2/m 3
 
02.12.01.16 Erlichmanite OsS2 P a3 2/m 3
 
02.12.01.17 Dzharkenite FeSe2 P a3 2/m 3
 
02.12.01.18 Gaotaiite Ir3Te8 P a3 2/m 3
 
02.12.01.19 Mayingite IrBiTe P a3 2/m 3
Help on  Strunz Class: Strunz Class: 02.EB.05a 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.E - Metal Sulfides, M:S � 1:2
  02.EB -M:S = 1:2, with Fe, Co, Ni, PGE, etc.
 
02.EB.05a Aurostibite AuSb2 P a3 2/m 3
 
02.EB.05a Cattierite CoS2 P a3 2/m 3
 
02.EB.05a Hauerite MnS2 P a3 2/m 3
 
02.EB.05a Fukuchilite Cu3FeS8 P a3 2/m 3
 
02.EB.05a Dzharkenite FeSe2 P a3 2/m 3
 
02.EB.05a Erlichmanite OsS2 P a3 2/m 3
 
02.EB.05a Geversite Pt(Sb,Bi)2 P a3 2/m 3
 
02.EB.05a Gaotaiite Ir3Te8 P a3 2/m 3
 
02.EB.05a Insizwaite Pt(Bi,Sb)2 P a3 2/m 3
 
02.EB.05a Laurite RuS2 P a3 2/m 3
 
02.EB.05a Krutaite CuSe2 P a3 2/m 3
 
02.EB.05a Pyrite FeS2 P a3 2/m 3
 
02.EB.05a Penroseite (Ni,Co,Cu)Se2 P a3 2/m 3
 
02.EB.05a Sperrylite PtAs2 P a3 2/m 3
 
02.EB.05a Vaesite NiS2 P a3 2/m 3
 
02.EB.05a Villamaninite (Cu,Ni,Co,Fe)S2 P a3 2/m 3
 
02.EB.05a Trogtalite CoSe2 P a3 2/m 3
 

Other Trogtalite 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 Trogtalite :
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
15 - WWW-MINCRYST

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Print or Cut-and-Paste your Trogtalite Specimen Label here :

Trogtalite

CoSe2
Dana No: 02.12.01.05 Strunz No: 02.EB.05a
Locality:

 

Notes:

 

 
   
 


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