Karelianite
A valid IMA mineral species
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About Karelianite
Formula:
V3+2O3
Colour:
Black
Lustre:
Metallic
Hardness:
8 - 9
Specific Gravity:
4.95 (Calculated)
Crystal System:
Trigonal
Member of:
Name:
After the Karelian schist belt, the region of Finland where the mineral occurs.
Hematite Group. The vanadium analogue of Corundum, Eskolaite, and Hematite.
A metastable polymorph with a bixbyite-type structure is known as a synthetic compound (Weber et al., 2011; Lüdtke et al., 2017).
A metastable polymorph with a bixbyite-type structure is known as a synthetic compound (Weber et al., 2011; Lüdtke et al., 2017).
Unique Identifiers
Mindat ID:
2158
Long-form identifier:
mindat:1:1:2158:2
GUID
(UUID V4):
(UUID V4):
962ae8e0-2c66-41c5-a73d-33d74fddefe8
IMA Classification of Karelianite
Approved
IMA Formula:
V2O3
Classification of Karelianite
4.CB.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
B : With medium-sized cations
4.3.1.4
4 : SIMPLE OXIDES
3 : A2X3
4 : SIMPLE OXIDES
3 : A2X3
7.12.18
7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta
7 : Oxides and Hydroxides
12 : Oxides of V, Nb and Ta
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Symbol | Source | Reference |
---|---|---|
Kar | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Kar | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Karelianite
Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Black
Hardness:
8 - 9 on Mohs scale
Hardness:
VHN50=1790 kg/mm2 - Vickers
Fracture:
Conchoidal
Density:
4.95 g/cm3 (Calculated)
Optical Data of Karelianite
Anisotropism:
Strong; reddish brown to gray
Bireflectance:
Weak
Reflectivity:
Wavelength | R |
---|---|
400nm | 14.3% |
420nm | 14.4% |
440nm | 14.5% |
460nm | 14.8% |
480nm | 15.2% |
500nm | 15.8% |
520nm | 16.3% |
540nm | 16.8% |
560nm | 17.2% |
580nm | 17.6% |
600nm | 18.0% |
620nm | 18.3% |
640nm | 18.7% |
660nm | 19.2% |
680nm | 19.8% |
700nm | 20.6% |
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 20.6%.
Colour in reflected light:
Brownish olive-gray
Internal Reflections:
No internal reflections.
Pleochroism:
Weak
Chemistry of Karelianite
Mindat Formula:
V3+2O3
Elements listed:
Common Impurities:
Fe,Cr
Crystallography of Karelianite
Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3c
Setting:
R3c
Cell Parameters:
a = 4.99 Å, c = 13.98 Å
Ratio:
a:c = 1 : 2.802
Unit Cell V:
301.47 ų (Calculated from Unit Cell)
Z:
6
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
---|---|---|---|---|---|---|---|
0010595 | Karelianite | Newnham R E, de Haan Y M (1962) Refinement of the alpha Al2O3, Ti2O3, V2O3 and Cr2O3 structures Zeitschrift fur Kristallographie 117 235-237 | 1962 | synthetic | 0 | 293 | |
0017741 | Karelianite | Finger L W, Hazen R M (1980) Crystal structure and isothermal compression of Fe2O3, Cr2O3, and V2O3 to 50 kbars Journal of Applied Physics 51 5362-5367 | 1980 | synthetic | 0.0001 | 293 | |
0017742 | Karelianite | Finger L W, Hazen R M (1980) Crystal structure and isothermal compression of Fe2O3, Cr2O3, and V2O3 to 50 kbars Journal of Applied Physics 51 5362-5367 | 1980 | synthetic | 1.83 | 293 | |
0017743 | Karelianite | Finger L W, Hazen R M (1980) Crystal structure and isothermal compression of Fe2O3, Cr2O3, and V2O3 to 50 kbars Journal of Applied Physics 51 5362-5367 | 1980 | synthetic | 2.83 | 293 | |
0017744 | Karelianite | Finger L W, Hazen R M (1980) Crystal structure and isothermal compression of Fe2O3, Cr2O3, and V2O3 to 50 kbars Journal of Applied Physics 51 5362-5367 | 1980 | synthetic | 4.7 | 293 | |
0017965 | Karelianite | Zachariasen W (1928) Untersuchungen ueber die Kristallstruktur von Sesquioxyden und Verbindungen ABO3 _cod_database_code 1011066 Skrifter utgitt av det Norske Videnskaps-Akademi i Oslo 1928 1-165 | 1928 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
1.70 Å | (100) |
2.71 Å | (90) |
2.49 Å | (80) |
3.67 Å | (70) |
1.44 Å | (40) |
1.84 Å | (25) |
2.20 Å | (20) |
Comments:
Outokumpu mine, Finland. Data from the type description. The pattern is similar to that of hematite.
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
Stage 5: Initiation of plate tectonics | <3.5-2.5 |
40 : Regional metamorphism (greenschist, amphibolite, granulite facies) | |
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
50 : Coal and/or oil shale minerals | <0.36 |
Type Occurrence of Karelianite
General Appearance of Type Material:
.Prismatic grains
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 121785 and 121786.
Geological Setting of Type Material:
High-grade metamorphic rocks (schists and quartzites).
Associated Minerals at Type Locality:
Reference:
Long J V P, Vuorelainen Y, Kouvo O (1963) Karelianite, a new vanadium mineral. American Mineralogist 48, 33-41
Other Language Names for Karelianite
Relationship of Karelianite to other Species
Member of:
Other Members of this group:
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
8 photos of Karelianite associated with Galena | PbS |
5 photos of Karelianite associated with Calcite | CaCO3 |
5 photos of Karelianite associated with Millerite | NiS |
4 photos of Karelianite associated with Sphalerite | ZnS |
3 photos of Karelianite associated with Hematite | Fe2O3 |
2 photos of Karelianite associated with Natalyite | NaV3+Si2O6 |
2 photos of Karelianite associated with Diopside | CaMgSi2O6 |
2 photos of Karelianite associated with Gersdorffite | NiAsS |
1 photo of Karelianite associated with Olkhonskite | (Cr,V)2Ti3O9 |
1 photo of Karelianite associated with Rutile | TiO2 |
Related Minerals - Strunz-mindat Grouping
4.CB. | Ferrohögbomite-2N2S | [(Fe2+,Mg,Zn,Al)3(Al,Ti,Fe3+)8O15(OH)]2 |
4.CB. | Magnesiohögbomite-6N12S | Mg5Al11TiO23(OH) |
4.CB. | Zhenruite | (MoO3)2 · H2O |
4.CB. | Pengite | (Pb8Sb3+3)Σ11Sb5+9O35 |
4.CB. | Virgilluethite | MoO3 · H2O |
4.CB.05 | Brizziite | NaSb5+O3 |
4.CB.05 | Corundum | Al2O3 |
4.CB.05 | Ecandrewsite | (Zn,Fe2+,Mn2+)TiO3 |
4.CB.05 | Eskolaite | Cr2O3 |
4.CB.05 | Geikielite | MgTiO3 |
4.CB.05 | Hematite | Fe2O3 |
4.CB.05 | Ilmenite | Fe2+TiO3 |
4.CB.05 | Melanostibite | Mn2+2Fe3+Sb5+O6 |
4.CB.05 | Pyrophanite | Mn2+TiO3 |
4.CB.05 | Akimotoite | (Mg,Fe2+)SiO3 |
4.CB.05 | Auroantimonate | AuSbO3 |
4.CB.05 | UM1998-11-O-AuHSb | Au+2Sb3+O2(OH) |
4.CB.05 | Tistarite | Ti3+2O3 |
4.CB.05 | Unnamed (Fe-Cr Oxide) | FeCrO3 |
4.CB.05 | Hemleyite | (Fe2+0.48Mg0.37Ca0.04Na0.04Mn2+0.03Al0.03Cr3+0.01)sum=1.00Si1.00O3 |
4.CB.10 | Avicennite | Tl2O3 |
4.CB.10 | Bixbyite-(Mn) | Mn3+2O3 |
4.CB.10 | Bixbyite-(Fe) | (Fe,Mn)2O3 |
4.CB.15 | Armalcolite | (Mg,Fe2+)Ti2O5 |
4.CB.15 | Sassite | Ti3+2Ti4+O5 |
4.CB.15 | Pseudobrookite | Fe2TiO5 |
4.CB.15 | Ferropseudobrookite | Fe2+Ti2O5 |
4.CB.15 | Griffinite | Al2TiO5 |
4.CB.15 | Pseudobrookite Group | |
4.CB.20 | Zincohögbomite-2N2S | [(Zn,Al,Fe2+)3(Al,Fe3+,Ti)8O15(OH)]2 |
4.CB.20 | Zincohögbomite-2N6S | [(Zn,Mg)7(Al,Fe3+,Ti)16O31(OH)]2 |
4.CB.20 | Magnesiohögbomite-6N6S | [(Mg,Fe2+)3(Al,Ti,Fe3+)8O15(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N3S | [(Mg,Fe2+,Zn)4(Al,Ti,Fe3+)10O19(OH)]2 |
4.CB.20 | Magnesiohögbomite-2N2S | [(Mg,Fe2+)3[Al7(Ti,Fe3+)]O15(OH)]2 |
4.CB.20 | Ferrohögbomite-6N12S | [(Fe2+,Mg,Zn)5(Al,Ti,Fe3+)12O23(OH)]6 |
4.CB.20 | Magnesiohögbomite-2N4S | (Mg8.43Fe2+1.57)sum=10Al22Ti4+2O46(OH)2 |
4.CB.20 | Magnesiobeltrandoite-2N3S | (Mg6Al2)(Al18Fe3+2)O38(OH)2 |
4.CB.20 | Zincovelesite-6N6S | Zn3(Fe3+,Mn3+,Al,Ti)8O15(OH) |
4.CB.25 | Pseudorutile | Fe2Ti3O9 |
4.CB.25 | Kleberite | FeTi6O11(OH)5 |
4.CB.30 | Berdesinskiite | V3+2TiO5 |
4.CB.30 | Oxyvanite | V3+2V4+O5 |
4.CB.30 | Kaitianite | Ti3+2Ti4+O5 |
4.CB.35 | Olkhonskite | (Cr,V)2Ti3O9 |
4.CB.35 | Schreyerite | V3+2Ti3O9 |
4.CB.35 | Machiite | Al2Ti3O9 |
4.CB.35 | Vestaite | (Ti4+Fe2+)Ti4+3O9 |
4.CB.40 | Kamiokite | Fe2Mo3O8 |
4.CB.40 | Nolanite | V3+8Fe3+2O14(OH)2 |
4.CB.40 | Rinmanite | Zn2Sb2Mg2Fe4O14(OH)2 |
4.CB.40 | Iseite | Mn2Mo3O8 |
4.CB.40 | Majindeite | Mg2Mo3O8 |
4.CB.40 | Rinmanite-(Zn) | Zn2Sb2(Fe3+4Zn2)O14(OH)2 |
4.CB.45 | Claudetite | As2O3 |
4.CB.45 | Stibioclaudetite | AsSbO3 |
4.CB.50 | Arsenolite | As2O3 |
4.CB.50 | Senarmontite | Sb2O3 |
4.CB.55 | Valentinite | Sb2O3 |
4.CB.60 | Bismite | Bi2O3 |
4.CB.65 | Sphaerobismoite | Bi2O3 |
4.CB.70 | Sillénite | Bi12SiO20 |
4.CB.75 | Kyzylkumite | V3+Ti2O5(OH) |
4.CB.80 | Tietaiyangite | Fe3+4Fe2+TiO9 |
4.CB.85 | Liuite | FeTiO3 |
4.CB.90 | Luogufengite | Fe2O3 |
4.CB.95 | Wangdaodeite | FeTiO3 |
Other Information
Notes:
HNO3 (1:1) positive; HCl (1:1), FeCl3 (20%), KCN (20%), KOH (40%) and HgCl2 (5%) all negative.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Karelianite
mindat.org URL:
https://www.mindat.org/min-2158.html
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References for Karelianite
Reference List:
Localities for Karelianite
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Argentina | |
| de Brodtkorb (1982) |
Canada | |
| HARRIS (1989) |
Czech Republic | |
| Veselovský et al. (2021) |
Fiji | |
| 16th Australian Geological Convention +3 other references |
Finland (TL) | |
| Long et al. (1-2) |
| Sergeeva et al. (2011, February) +1 other reference |
Gabon | |
| Janeczek (1999) |
Germany | |
| Weiß (1990) |
India | |
| Mallick et al. (2005, March) |
| Kompanchenko et al. (2018) |
Italy | |
| Orlandi et al. (2004) |
Madagascar | |
| Di Cecco et al. (2018) |
Cecco (2013) +1 other reference | |
Russia | |
| Mandarino (1996) +1 other reference |
| Pekov (1998) +2 other references |
| Mikhailova et al. (2007) |
| Karpov S.M. et al. (2012) +2 other references |
| Boitsov (1997) +1 other reference |
Tanzania | |
| Gaston Giuliani et al. (2008) +1 other reference |
Feneyrol J. et al. (20) |
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Roter Bär Mine, St Andreasberg, Braunlage, Goslar District, Lower Saxony, Germany