Irregular, Brittle, Conchoidal
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
On {011}, distinct; on {001}, {013}, indistinct
{???} Perfect
PbMoO 4Walter Schumann , Gemstones of the world (2001)
SbTaO 4Ulrich Henn and Claudio C.