ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
ConchoidalArthur Thomas, Conchoidal, Brittle
SbTaO 4Ulrich Henn and Claudio C.
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)