re: Not the top o' the list...
Fluorapatite? Ca5(PO4)3F (fits the major ion chemistry of Mars)
Commonly hexagonal prisms, fairly soft (Mohrs hardness 5), sub-vitreous to vitreous lustre. WHite or pale coloured
Space/Science » in reply to Not the top o' the list...
Fluorapatite? Ca5(PO4)3F (fits the major ion chemistry of Mars)
Commonly hexagonal prisms, fairly soft (Mohrs hardness 5), sub-vitreous to vitreous lustre. WHite or pale coloured