Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)
Uneven, UnevenAnthony et al, Handbook of mineralogy (2001)
(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Pb 5Cu 2(SO 4) 3(CO 3)(OH) 6Anthony et al , Handbook of mineralogy (2001)