Metauranospinite

metauranospinite

meta-autunite

fluorite

arsenate

Images

Formula: Ca(UO2)2(AsO4)2.8H2O
Hydrated normal arsenate, meta-autunite group
Specific gravity: 3.94
Hardness: 2 to 3
Streak: Pale yellow
Colour: Greenish yellow, yellowish green
RADIOACTIVE
Environments:

Pegmatites
Hydrothermal environments

Metauranospinite occurs as a secondary mineral in uranium-bearing fluorite veins in sedimentary uranium deposits, and in late fractures in granite pegmatites (Mindat, HOM).

Localities

The type localityis the Sophia mine, Böckelsbach valley, Wittichen, Schenkenzell, Rottweil, Freiburg Region, Baden-Württemberg, Germany.

Alteration:

Metauranospinite is a dehydration product of uranospinite, as indicated by the prefix "meta". It rehydrates easily back to uranospinite (Dana, Webmin).

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