出典:Wikipedia
出典:『Wikipedia』 (2011/06/14 12:09 UTC 版)
Betafite is a mineral in the pyrochlore group, with the chemical formula (Ca,U)2(Ti,Nb,Ta)2O6(OH). Betafite typically occurs as a primary mineral in granite pegmatites, rarely in carbonatites. Betafite was discovered in 1912 at Betafo, Malagasy Republic.