Trogtalite Mineral Data (original) (raw)

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

Click Here for Larger Trogtalite Image in a New Browser Window Images:

Click Here for Larger Trogtalite Image 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 - DiploidalH-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),

Click Here for Large Trogtalite Structure Window Crystal Structure:

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| | Furuseth S , Kjekshus A , Andresen A F , Acta Chemica Scandinavica , 23 (1969) p.2325-2334, On the magnetic properties of CoSe2, NiS2, and NiSe2, Locality: synthetic | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |

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

RelativeIntensity 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: