Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle
Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Distinct on {10 1 1}, imperfect on {01 1 2}
[001] good, [210] distinct
Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references