Conchoidal, Brittle, Conchoidal, Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Subconchoidal, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Irregular
[001] good, [210] distinct
{100} imperfect, {110} indistinct; partings on {111} or {011}
PbSO 4Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
SnO 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references