Karelianite is an rare mineral, a natural form of

vanadium(III) oxide Vanadium(III) oxide is the inorganic compound with the formula V2O3. It is a black solid prepared by reduction of V2O5 with hydrogen or carbon monoxide. It is a basic oxide dissolving in acids to give solutions of vanadium (III) complexes. V2O3 h ...

, V₂O₃. In terms of chemistry it is vanadium-analogue of

hematite Hematite (), also spelled as haematite, is a common iron oxide compound with the formula, Fe2O3 and is widely found in rocks and soils. Hematite crystals belong to the rhombohedral lattice system which is designated the alpha polymorph of . ...

corundum Corundum is a crystalline form of aluminium oxide () typically containing traces of iron, titanium, vanadium, and chromium. It is a rock (geology), rock-forming mineral. It is a naturally transparency and translucency, transparent material, but ...

eskolaite Eskolaite is a rare chromium oxide mineral (chromium(III) oxide Cr2O3). Discovery and occurrence It was first described in 1958 for an occurrence in the Outokumpu, Finland, Outokumpu ore deposit of eastern Finland. It occurs in chromium bearing t ...

tistarite Tistarite is an exceedingly rare mineral with the formula Ti2O3, thus being the natural analogue of titanium(III) oxide.Mindat, Tistarite, http://www.mindat.org/min-38695.html In terms of chemistry it is the titanium-analogue of hematite, corundu ...

bixbyite Bixbyite is a manganese iron oxide mineral with chemical formula: . The iron/manganese ratio is quite variable and many specimens have almost no iron. It is a metallic dark black with a Mohs hardness of 6.0 – 6.5. It is a somewhat rare mineral ...

avicennite Avicennite ( thallium(III) oxide) is an oxide mineral. It was discovered around the Dzhuzumli village, Samarqand, Uzbekistan. It is named after Avicenna, a Persian doctor and polymath. See also *List of minerals *List of minerals named after peopl ...

, and yttriaite-(Y). The name comes from

Karelia Karelia (; Karelian language, Karelian and ; , historically Коре́ла, ''Korela'' []; ) is an area in Northern Europe of historical significance for Russia (including the Soviet Union, Soviet era), Finland, and Sweden. It is currentl ...

, a region on the Finnish-Russian border. It may be associated with magnesium-rich rocks.

References

Oxide minerals Vanadium minerals Hematite group Trigonal minerals {{Mineral-stub