Formula: BiPO4
Origin of name: from locality, Ximeng County, China
Crystal system: Trigonal
Crystal class: 32
Twinning:
Unit cell: a = 6.986, c = 6.4753
Colour: Colourless
Diaphaneity: Transparent
Luster: Vitreous, greasy
Habit: Grains smaller than 0.001 to 0.01 mm in irregular granular aggregates or earthy veinlets
Hardness: 4.5
Specific gravity:
Cleavage: None observed
Tenacity:
Streak: White
Synonyms/varieties:
Comments: fluoresces yellowish green under electron beam
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