Formula: CaAl3(PO4)(SO4)(OH)6
Origin of name: for Charles Douglas Woodhouse (1888-1975), American collector of Santa Barbara, California
Crystal system: Hexagonal
Crystal class: 3 2/m
Twinning:
Unit cell: a = 6.98 Å, c = 16.21 Å
Colour: Colourless, white to yellowish pink, flesh-pink
Diaphaneity: Transparent to translucent
Luster: Vitreous, pearly on {0001}
Habit: Crystals pseudocubic or tabular, small, faces rough, curved or striated
Hardness: 4.5
Specific gravity: 3.01
Cleavage: 1; {0001} perfect
Tenacity:
Streak: White
Synonyms/varieties: Kehoeite-quartz, gypsum and sphalerite
Comments:
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