Ximengite

Ximengite is a phosphate mineral discovered in and named for the Ximeng tin-mining district in China. Chemically, it is bismuth phosphate

Ximengite
General
Category	Phosphate minerals
Formula	BiPO4
IMA symbol	Xim[1]
Strunz classification	8.AD.45
Crystal system	Trigonal
Crystal class	Trapezohedral (32) H-M symbol: (32)
Space group	P3121 or P3221
Identification
Formula mass	303.95 g/mol
Color	Colorless
Mohs scale hardness	4.5
Luster	Vitreous - Greasy
Diaphaneity	Transparent
Specific gravity	5.53
References	[2][3]