"' Thortveitite "'is a mineral consisting of scandium yttrium silicate ( Sc, Y ) 2 Si 2 O 7.
2.
Rare minerals from Scandinavia and Madagascar such as gadolinite, euxenite, and thortveitite are the only known concentrated sources of this element, the latter containing up to 45 % of scandium in the form of scandium ( III ) oxide.
3.
Madagascar and Iveland-Evje region in Norway have the only deposits of minerals with high scandium content, thortveitite ( Sc, Y ) 2 ( Si 2 O 7 ) and kolbeckite ScPO 4 ?H 2 O, but these are not being exploited.
परिभाषा
a mineral consisting of scandium yttrium silicate; a source of scandium
मोबाइल