ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
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CaBe 2(PO 4) 2Michael OâDonoghue , Gems, Sixth Edition (2006)
Ca(Nd,Ce,La) 2(CO 3) 3F 2Ulrich Henn and Claudio C.