Mineralogy Database

Freboldite Mineral Data

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General Freboldite Information

Help on Chemical  Formula: Chemical Formula: CoSe
Help on Composition: Composition: Molecular Weight = 137.89 gm
   Cobalt    42.74 %  Co
   Selenium  57.26 %  Se
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: CoSe
Help on Environment: Environment: In dolomite veinlets.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1957
Help on Locality: Locality: From the Trogtal quarry, Steinbruch, and at Rote Berg, St. Andreasberg, Harz. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Professor Georg Frebold of Hannover, Germany.
Help on Name Pronunciation: Name Pronunciation: Freboldite + Pronunciation Say FREBOLDITE
Help on Synonym: Synonym: ICSD 42541
  PDF 15-464
 

Freboldite Image

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  Freboldite

Comments: Copper-red, tarnished, freboldite, as granular material intermixed with darker colored sandstone matrix.
Location: Temple Mountain, San Rafael District (San Rafael Swell), Emery Co., Utah, USA. Scale: Specimen Size 2 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Freboldite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.4626
Help on Cell Dimensions: Cell Dimensions: a = 3.61, c = 5.28, Z = 2; V = 59.59 Den(Calc)= 7.68
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): 1.066(1), 2.05(1), 9.63(1),
 

Physical Properties of Freboldite

Help on Cleavage: Cleavage: None
Help on Color: Color: Copper red, Pink.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Metallic
 

Optical Properties of Freboldite

Help on RL Anisotrophism: RL Anisotrophism: Less than nickeline.
Help on RL Color: RL Color: Similar to nickeline, but more intense violet in oil.
 

Calculated Properties of Freboldite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.79 gm/cc
note: Specific Gravity of Freboldite =7.68 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEFreboldite = 61.17 barns/electron
U=PEFreboldite x rElectron Density= 415.66 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Freboldite is Not Radioactive
 

Freboldite Classification

Help on  Dana Class: Dana Class: 02.08.11.10 (02)Sulfides - Including Selenides and Tellurides
  (02.08)where Am Bn Xp, with (m+n):p=1:1
  (02.08.11)Nickeline Group (Hexagonal: P63/mmc)
 
02.08.11.01 Nickeline NiAs P 63/mmc 6/m 2/m 2/m
 
02.08.11.02 Breithauptite NiSb P 63/mmc 6/m 2/m 2/m
 
02.08.11.03 Sederholmite NiSe P 63/mmc 6/m 2/m 2/m
 
02.08.11.04 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 63/mmc 6/m 2/m 2/m
 
02.08.11.05 Sudburyite (Pd,Ni)Sb P 63/mmc 6/m 2/m 2/m
 
02.08.11.06 Kotulskite Pd(Te,Bi) P 63/mmc 6/m 2/m 2/m
 
02.08.11.07 Sobolevskite PdBi P 63/mmc 6/m 2/m 2/m
 
02.08.11.08 Stumpflite Pt(Sb,Bi) P 63/mmc 6/m 2/m 2/m
 
02.08.11.09 Langisite (Co,Ni)As P 63/mmc 6/m 2/m 2/m
 
02.08.11.10 Freboldite CoSe P 63/mmc 6/m 2/m 2/m
 
02.08.11.11 Achavalite! FeSe P 63/mmc 6/m 2/m 2/m
 
02.08.11.12 Sorosite! Cu(Sn,Sb) P 63/mmc 6/m 2/m 2/m
 
02.08.11.13 Vavrinite! Ni2SbTe2 P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.CC.05 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CC -With Ni, Fe, Co, PGE, etc.
 
02.CC.05 Achavalite FeSe P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Breithauptite NiSb P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Freboldite CoSe P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Hexatestibiopanickelite (Ni,Pd)(Te,Sb) P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Langisite (Co,Ni)As P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Jaipurite* CoS P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Kotulskite Pd(Te,Bi) P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Nickeline NiAs P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Zlatogorite! CuNiSb2 P 3m1 3 2/m
 
02.CC.05 Sederholmite NiSe P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Stumpflite Pt(Sb,Bi) P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Sudburyite (Pd,Ni)Sb P 63/mmc 6/m 2/m 2/m
 
02.CC.05 Sobolevskite PdBi P 63/mmc 6/m 2/m 2/m
 

Other Freboldite 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 Freboldite :
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 Freboldite Specimen Label here :

Freboldite

CoSe
Dana No: 02.08.11.10 Strunz No: 02.CC.05
Locality:

 

Notes:

 

 
   
 


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