abukumalite (suomeksi)

Määritelmät:

(lb, en, mineral, outdated) A mineral, (Ca,Y)₅(P,Si)₃O₁₂(OH,F), that can contain uranium or thorium. The mineral was renamed ''britholite-(Y)'' in 1966 because of its similarity to britholite and because of its yttrium-dominant composition.