Horsfordite Mineral Data

Horsfordite Mineral Data
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General Horsfordite Information

Help on Chemical Formula: Chemical Formula: Cu5Sb
Help on Composition: Composition: Molecular Weight = 503.03 gm
   Copper    75.80 %  Cu
   Antimony  24.20 %  Sb
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Cu6Sb
Help on Environment: Environment: A questionable species. Horsfordite (1888) is now considered a metallurgical product.
Help on IMA Status: IMA Status: Discredited IMA 2006 - Valid Species (Pre-IMA) 1855
Help on Locality: Locality: Mytilene, Lesbos Island, Greece. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Eben N. Horsford, (1818-1893), U.S. chemist.
Help on Name Pronunciation: Name Pronunciation: Horsfordite + Pronunciation Say HORSFORDITE
 

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Horsfordite Crystallography
Help on Crystal System: Crystal System: IsometricSpace Group: Unk
 

Physical Properties of Horsfordite

Help on Cleavage: Cleavage: None
Help on Color: Color: Gray, Silver white.
Help on Density: Density: 8.8
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Massive - Uniformly indistinguishable crystals forming large masses.
Help on Habit: Habit: Tarnishes - Freshly fractured surfaces form a surface oxidation film
Help on Hardness: Hardness: 4-5 - Fluorite-Apatite
Help on Luster: Luster: Metallic
Help on Streak: Streak: silver white
 

Optical Properties of Horsfordite

Help on RL Color: RL Color: Slightly cream colored to silver-blue and grayish white.
 

Calculated Properties of Horsfordite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=7.87 gm/cc
note: Specific Gravity of Horsfordite =8.80 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PEHorsfordite = 115.10 barns/electron
U=PEHorsfordite x rElectron Density= 906.09 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Horsfordite is Not Radioactive
 

Horsfordite Classification
Help on Dana Class: Dana Class: 02.01.02.01 (02)Sulfides - Including Selenides and Tellurides
  (02.01)where Am Xp, with m:p>3:1
  (02.01.02)Dana Group
 
02.01.02.01 Horsfordite? Cu5Sb Unk Cubic
Help on Strunz Class: Strunz Class: 02.XX.00 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.X - Unclassified Strunz SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarse
  02.XX -Antimonide
 
02.XX.00 Isochalcopyrite? Cu8Fe9S16 Unk Cubic
 
02.XX.00 Bayankhanite? Cu6HgS4 Unk Hex
 
02.XX.00 Bravoite? (Fe,Ni,Co)S2 P a3 2/m 3
 
02.XX.00 Dzhezkazganite* (Pb,Cu,Rh)S2(?) P a3? 2/m 3
 
02.XX.00 Dilithium* Li2Te P 222 2 2 2
 
02.XX.00 Horobetsuite* (Bi,Sb)2S3 Pbnm 2/m 2/m 2/m
 
02.XX.00 Horsfordite? Cu5Sb Unk Cubic
 
02.XX.00 Kurilite? (Ag,Au)2(Te,Se,S) P m3n,P 43n Cubic
 
02.XX.00 Imgreite? NiTe P 63/mmc 6/m 2/m 2/m
 
02.XX.00 Matraite? ZnS R 3m 3m
 
02.XX.00 Iridisite* (Ir,Cu,Rh,Ni,Pt)S2 Unk Cubic
 
02.XX.00 Kitaibelite? Ag10PbBi30S51 Mono ? Mono
 
02.XX.00 Jeromite? As(S,Se)2 None
 
02.XX.00 Parajamesonite? Pb4FeSb6S14 Unk Ortho
 
02.XX.00 Volfsonite* Cu10CuFeFe2Sn3S16 P 42m-,P 4212 Tetra
 
02.XX.00 Prassoite Rh17S15(?) P m3m 4/m 3 2/m
 
02.XX.00 Sakharovaite? (Pb,Fe)(Bi,Sb)2S4 Mono
 
02.XX.00 Samaniite Cu2Fe5Ni2S8 P 41/mmm 4mm
 
02.XX.00 Tazieffite! Pb20Cd2(As,Bi)22S50Cl10 C 2/c 2/m
 
02.XX.00 Horomanite Fe6Ni3S8 P 4/mmm 4mm
 

Other Horsfordite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Ford32) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Horsfordite :
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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Print or Cut-and-Paste your Horsfordite Specimen Label here :

Horsfordite

Cu5Sb
Dana No: 02.01.02.01 Strunz No: 02.XX.00
Locality:

 

Notes: