Subconchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
(Ca,Ce)(Al,Ti,Mg)12O19
Al 4(Ta,Nb) 3(O,OH,F) 14Ulrich Henn and Claudio C.