Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven
Uneven, Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Uneven, Subconchoidal, Brittle, Metallic, Brittle, Metallic
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
{101}, good; {010}, poor
CaWO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Zn 2(AsO 4)(OH)Michael OâDonoghue , Gems, Sixth edition (2006)