Green, Yellow, Colorless, Grey, Brown, White, Red
Colorless, White, Brownish, Reddish, Black, Brownish, Black, Colorless, gray, White, Reddish, Brown
Uneven, ConchoidalArthur Thomas, Brittle, Metallic
Uneven
Pb 5(PO 4) 3ClArthur Thomas , Gemstones (2009)
Na 3AlF 6Ulrich Henn and Claudio C.