Wycheproofite

Formula: NaAlZr(PO4)2(OH)2.H2O

Origin of name: after locality, a granite quarry near Wycheproof, northwestern Victoria, Australia.

 

Crystal system: Triclinic

Crystal class: 1 or 1

Twinning:

Unit cell: a = 10.962, b = 10.986, c = 12.479, α = 71.0156, β = 77.108, γ = 87.016

 

Colour: Pale pinkish orange to pale brownish orange

Diaphaneity: Transparent

Luster: Vitreous to pearly

Habit: Fibrous grains 5 to 10 micron x several mm long forming thick aggregates

Hardness: 4 to 5

Specific gravity: 2.81 to 2.83

Cleavage: None

Tenacity: Uneven, irregular fracture

Streak: Colourless, white

 

Synonyms/varieties:

 

Comments: 

 

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