Kangite
Kangite is an exceedingly rare scandium mineral, a natural form of impure scandium oxide (Sc2O3), with the formula (Sc,Ti,Al,Zr,Mg,Ca,□)2O3. It crystalizes in the cubic crystal system diploidal class. In terms of chemistry it scandium-analogue of tistarite. Both kangite and tistarite were discovered in the Allende meteorite.
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