UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven
Uneven, Conchoidal, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Brittle
{010} Perfect, {001} Distinct
Indistinct on {001}; partings on {011} and {111}
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
FeS 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references