Mineralogy Database

Karelianite Mineral Data

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General Karelianite Information

Help on Chemical  Formula: Chemical Formula: V2O3
Help on Composition: Composition: Molecular Weight = 149.88 gm
   Vanadium  67.98 %  V   100.00 % V2O3
   Oxygen    32.02 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: V3+2O3
Help on Environment: Environment: In sulfide-rich protions of glacial boulders derived from high-grade metamorphic rocks (schists and quartzites).
Help on IMA Status: IMA Status: Approved IMA 1963
Help on Locality: Locality: Outokumpu, Karelia, Finland. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Karelian shist belt were the mineral occurs.
Help on Name Pronunciation: Name Pronunciation: Karelianite + Pronunciation Say KARELIANITE
Help on Synonym: Synonym: ICSD 201106
  PDF 34-187

Karelianite Image

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Comments: Dark bluish-black granular karelianite.
Location: Outokumpu, Pohjois-Karjala, Finland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Karelianite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.8016
Help on Cell Dimensions: Cell Dimensions: a = 4.99, c = 13.98, Z = 6; V = 301.47 Den(Calc)= 4.95
Help on Crystal System: Crystal System: Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.7132(1), 1.699(0.85), 2.4774(0.8),

Physical Properties of Karelianite

Help on Cleavage: Cleavage: None
Help on Color: Color: Black.
Help on Density: Density: 4.87
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz).
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 8-9
Help on Luster: Luster: Metallic
Help on Streak: Streak: black

Optical Properties of Karelianite

Help on Optical Data: Optical Data: Uniaxial (?).
  NCalc= 2.38 - from Gladstone-Dale relationship (KC = 0.279) where Ncalc=Dcalc*KC+1
NCalc= 2.36 - from Gladstone-Dale relationship (KC = 0.279) where Ncalc=Dmeas*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Strong, reddish brown to gray.
Help on RL Bireflectance: RL Bireflectance: Weak.
Help on RL Color: RL Color: Brownish olive-gray.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Karelianite in Air
λ R  ∑ R(λ) 
 400 nm   14.30   
 420 nm   14.40 
 440 nm   14.50 
 460 nm   14.80 
 480 nm   15.20 
 500 nm   15.80 
 520 nm   16.30 
 540 nm   16.80 
 560 nm   17.20 
 580 nm   17.60 
 600 nm   18.00 
 620 nm   18.30 
 640 nm   18.70 
 660 nm   19.20 
 680 nm   19.80 
 700 nm   20.60 
Calculated Relative Intensity Colors of Karelianite in Air
   0%   60% 100% 120% 180% 240% 300% 360% 420% 480% 540% 600%

Calculated Properties of Karelianite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.62 gm/cc
note: Specific Gravity of Karelianite =4.95 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0018531119
Boson Index = 0.9981468881
Help on Photoelectric: Photoelectric: PEKarelianite = 13.27 barns/electron
U=PEKarelianite x rElectron Density= 61.35 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Karelianite is Not Radioactive

Karelianite Classification

Help on  Dana Class: Dana Class: (04)Simple Oxides
  (04.03)with a cation charge of 3+ (A+++2 O3)
  (04.03.01)Corundum-Hematite group (Rhombohedral: R-3c) Corundum Al2O3 R 3c 3 2/m Hematite Fe2O3 R 3c 3 2/m Eskolaite Cr2O3 R 3c 3 2/m Karelianite V2O3 R 3c 3 2/m Tistarite! Ti2O3 R 3c 3 2/m
Help on  Strunz Class: Strunz Class: 04.CB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.C - Metal:Oxygen = 2:3, 3:5, and Similar
  04.CB -With medium-sized cations
04.CB.05 Auroantimonate* AuSbO3 Ortho ? Ortho
04.CB.05 Geikielite MgTiO3 R 3 3
04.CB.05 Brizziite-III NaSbO3 R 3 3
04.CB.05 Brizziite-VII NaSbO3 R 3 3
04.CB.05 Ecandrewsite (Zn,Fe,Mn)TiO3 R 3 3
04.CB.05 Corundum Al2O3 R 3c 3 2/m
04.CB.05 Eskolaite Cr2O3 R 3c 3 2/m
04.CB.05 Hematite Fe2O3 R 3c 3 2/m
04.CB.05 Karelianite V2O3 R 3c 3 2/m
04.CB.05 Ilmenite FeTiO3 R 3 3
04.CB.05 Melanostibite Mn(Sb,Fe)O3 R 3 3
04.CB.05 Pyrophanite MnTiO3 R 3 3
04.CB.05 Romanite* (Fe,U,Pb)2(Ti,Fe)O4 Trig ? Trig
04.CB.05 Tistarite! Ti2O3 R 3c 3 2/m

Other Karelianite Information

Help on References: References: NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)
Help on See Also: See Also: Links to other databases for Karelianite :
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 - University of Colorado - Mineral Structure Data

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Dana No: Strunz No: 04.CB.05





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