Conchoidal, Conchoidal, Gemstones of the world (2001) More from other references, Uneven
ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
On {101}, distinct; on {112}, interrupted; on {001}, indistinct
None