Uneven, ConchoidalAnthony et al, Handbook of mineralogy (2001)
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
(Ca,Ce) 4 Na(Na,Ca) 2 Ti(Si 2 O 7 ) 2 F 2 (O,F) 2 Michael O’Donoghue, Gems, Sixth Edition (2006)
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)