Raspite

Formula: PbWO₄

Origin of name: for C. Rasp, German-Australian prospector

Crystal system: monoclinic

Crystal class: 2/m

Twinning: common on {100}, rare on {-120}

Unit cell: a = 13.52 Å, b = 4.97 Å, c = 5.55 Å, b = 107.8°

Colour: brownish yellow to yellow

Diaphaneity: 

Luster: adamantine

Habit: crystals thin to thick tabular, contact twins of {100}

Hardness: 2.5 to 3

Specific gravity: 8.47

Cleavage: 1; {100} perfect

Tenacity: 

Streak: 

Synonyms/varieties:

Comments: dimorphous with stolzite