Mineralogy Database

Hodrushite Mineral Data

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General Hodrushite Information

Help on Chemical  Formula: Chemical Formula: Cu8Bi12S22
Help on Composition: Composition: Molecular Weight = 3,721.58 gm
   Copper   13.66 %  Cu
   Bismuth  67.38 %  Bi
   Sulfur   18.96 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: Cu8Bi12S22
Help on Environment: Environment: In polymetallic ore deposits of subvolcanic type, in a quartz vein system developed in propylitized pryoxenite andesite.
Help on IMA Status: IMA Status: Approved IMA 1970
Help on Locality: Locality: Hodursa, Czechoslovakia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Hodrushite + Pronunciation Say HODRUSHITE
Help on Synonym: Synonym: ICSD 24462
  PDF 25-267
 

Hodrushite Image

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  Cupromakovickyite   Hodrushite

Comments: Kup?cíkite (ku) and hodrushite (ho) partly replaced by bismuthinite derivative (bd56) with relict lamellae of low-Cu (4P) and cupromakovickyite [4P(Cu,Pb)]. (CanMin, 41:1165).
Location: Scheelite deposit of Felbertal, Austria. Scale: Scale Bar 100 µm.
© Canadian Mineralogist

Hodrushite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =6.9236:1:4.4732
Help on Cell Dimensions: Cell Dimensions: a = 27.21, b = 3.93, c = 17.58, Z = 2; beta = 92.15° V = 1,878.60 Den(Calc)= 6.58
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: A2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.102(1), 2.715(0.8), 3.62(0.8),
 

Physical Properties of Hodrushite

Help on Cleavage: Cleavage: None
Help on Color: Color: Brown, Brownish bronze, Steel gray.
Help on Density: Density: 6.45
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Hardness: Hardness: 4-5 - Fluorite-Apatite
Help on Luster: Luster: Metallic
Help on Streak: Streak: grayish black
 

Optical Properties of Hodrushite

Help on RL Anisotrophism: RL Anisotrophism: Very feeble, in grays.
Help on RL Color: RL Color: Creamy with very slight pinkish tint.
Help on RL Pleochroism: RL Pleochroism: Very weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Hodrushite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   36.20   39.80 
   
 420 nm   36.20   40.40 
 440 nm   36.20   41.00 
 460 nm   36.30   41.60 
 480 nm   36.40   42.00 
 500 nm   36.60   42.40 
 520 nm   36.90   42.60 
 540 nm   37.40   42.80 
 560 nm   37.60   43.00 
 580 nm   37.80   43.20 
 600 nm   37.90   43.30 
 620 nm   38.00   43.50 
 640 nm   38.00   43.70 
 660 nm   38.00   43.70 
 680 nm   37.90   43.60 
 700 nm   37.80   43.40 
Calculated Relative Intensity Colors of Hodrushite in Air
Relative
Intensity
   0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 250%
R1                      
R2                      
 

Calculated Properties of Hodrushite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.59 gm/cc
note: Specific Gravity of Hodrushite =6.58 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0014223504
Boson Index = 0.9985776496
Help on Photoelectric: Photoelectric: PEHodrushite =1,285.05 barns/electron
U=PEHodrushite x rElectron Density=7,179.69 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hodrushite is Not Radioactive
 

Hodrushite Classification

Help on  Dana Class: Dana Class: 03.08.04.01 (03)Sulfides - Sulfosalts
  (03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.08.04)Dana Group
 
03.08.04.01 Hodrushite Cu8Bi12S22 A2/m 2/m
 
03.08.04.02 Paderaite Cu7((Cu,Ag)0.33Pb1.33Bi11.33)13S22 P 21/m 2/m
Help on  Strunz Class: Strunz Class: 02.JA.10c 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.J - Sulfosalts of PbS Archetype
  02.JA -Galena derivatives with little or no Pb
 
02.JA.10c Hodrushite Cu8Bi12S22 A2/m 2/m
 

Other Hodrushite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Hodrushite :
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 Hodrushite Specimen Label here :

Hodrushite

Cu8Bi12S22
Dana No: 03.08.04.01 Strunz No: 02.JA.10c
Locality:

 

Notes:

 

 
   
 


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