Papagoite

quartz

ajoite

Formula: CaCuAlSi2O6(OH)3
Cyclosilicate (ring silicate)
Specific gravity: 3.25
Hardness: 5 to 5½
Streak: Very pale blue
Colour: Cerulean blue
Solubility: Partly soluble in boiling concentrated hydrochloric acid
Environments:

Hydrothermal environments

Papagoite is a rare secondary mineral.

At the Messina mines, South Africa, papagoite occurs as inclusions in quartz associated with ajoite (Dana, HOM).

At the type locality, the New Cornelia mine, Ajo, Pima county, Arizona, USA, papagoite occurs in narrow veinlets in metasomatically altered granodiorite (HOM) on a rock that consists chiefly of quartz and albite; associated with this assemblage are lesser amounts of muscovite variety sericite, epidote and calcite, and minor amounts of apatite, rutile, titanite, zircon, anatase and alunite; tenorite, (AM 45.599), aurichalcite, shattuckite, ajoite and baryte may also be present (HOM).

Common impurities: Fe,Mn,Ti,Mg,H2O

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