Stercorite

stercorite

biphosphammite

struvite

guano

Images

Formula: (NH₄)Na(PO₃OH).4H₂O
Hydrated acid phosphate
Crystal System: Triclinic
Specific gravity: 1.615
Hardness: 2
Streak: White
Colour: Colourless, white, pale yellow, brownish, colourless in transmitted light
Solubility: Soluble in water
Melting point: 79°
Environments

Cave deposits

Stercorite occurs in bird and bat guano deposits (Webmin); hence its name, "stercorite", from the Latin "stercus", meaning dung.

Localities

At the Petrogale Cave, Madura Roadhouse, Dundas Shire, Western Australia, stercorite is associated with biphosphammite (HOM).

At the type locality, Ichaboe Island, ǃNamiǂNûs Constituency, ǁKaras Region, Namibia, stercorite is associated with struvite (HOM).

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