Mineralogy Database

Vulcanite Mineral Data

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General Vulcanite Information

Help on Chemical  Formula: Chemical Formula: CuTe
Help on Composition: Composition: Molecular Weight = 191.15 gm
   Copper     33.24 %  Cu
   Tellurium  66.76 %  Te
             100.00 % 
Help on Empirical Formula: Empirical Formula: CuTe
Help on Environment: Environment: Intermixed with other tellurides.
Help on IMA Status: IMA Status: Approved IMA 1961
Help on Locality: Locality: Good Hope mine, Vulcan, Gunnison County, Colorado, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Vulcanite + Pronunciation Say VULCANITE
Help on Synonym: Synonym: ICSD 42591
  PDF 22-252

Vulcanite Image

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Comments: Pale yellow metallic massive vulcanite in rock.
Location: Iriki Mine, Kagoshima, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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  Cameronite   Rickardite   Vulcanite

Comments: Gray metallic massive cameronite showing subconchoidal fracture associated with purple rickardite and bronzy plates of vulcanite in a mass of tellurium, co-type specimen.
Location: Good Hope mine, Vulcan District, Gunnison County, Colorado, USA. Scale: See Image.
© Rruff Database

Vulcanite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5884:1:0.4532
Help on Cell Dimensions: Cell Dimensions: a = 4.09, b = 6.95, c = 3.15, Z = 2; V = 89.54 Den(Calc)= 7.09
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pmnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.03(1), 2.86(0.7), 3.52(0.6),

Physical Properties of Vulcanite

Help on Cleavage: Cleavage: {hk0} Good, {h0l} Indistinct
Help on Color: Color: Bronze, Light bronze.
Help on Density: Density: 7.1
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Habit: Habit: Twinning Common - Crystals are usually twinned.
Help on Hardness: Hardness: 1-2 - Between Talc and Gypsum
Help on Luster: Luster: Metallic

Optical Properties of Vulcanite

Help on RL Anisotrophism: RL Anisotrophism: Very strong, brilliant yellow-white, grayish yellow-white, yellow-orange to gray.
Help on RL Pleochroism: RL Pleochroism: Very strong, bright yellow to blue-gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Vulcanite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   25.60   30.70 
 420 nm   24.40   30.00 
 440 nm   23.00   30.50 
 460 nm   21.30   37.00 
 480 nm   19.70   47.90 
 500 nm   18.10   56.80 
 520 nm   16.60   63.40 
 540 nm   15.20   67.80 
 560 nm   13.80   70.80 
 580 nm   12.70   73.10 
 600 nm   11.80   74.90 
 620 nm   11.30   76.40 
 640 nm   11.20   77.40 
 660 nm   11.60   78.20 
 680 nm   12.90   78.90 
 700 nm   15.00   79.30 
Calculated Relative Intensity Colors of Vulcanite in Air
   0%   70% 100% 140% 210% 280% 350% 420% 490% 560% 630%

Calculated Properties of Vulcanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.01 gm/cc
note: Specific Gravity of Vulcanite =7.09 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEVulcanite = 258.05 barns/electron
U=PEVulcanite x rElectron Density=1,550.58 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Vulcanite is Not Radioactive

Vulcanite Classification

Help on  Dana Class: Dana Class: (02)Sulfides - Including Selenides and Tellurides
  (02.08)where Am Bn Xp, with (m+n):p=1:1
  (02.08.13)Dana Group Vulcanite CuTe Pmnm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 02.CB.75 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.C - Metal Sulfides, M:S = 1:1 (and similar)
  02.CB -With Zn, Fe, Cu, Ag, Au, etc
02.CB.75 Vulcanite CuTe Pmnm 2/m 2/m 2/m

Other Vulcanite 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 Vulcanite :
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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Dana No: Strunz No: 02.CB.75





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