Sabugalite

sabugalite

phosphate

autunite

uranium

Images

Formula: HAl(UO₂)₄(PO₄)₄.16H₂O
Hydrated normal phosphate, autunite group, uranyl mineral
Crystal System: Monoclinic
Specific gravity: 3.20 measured, 3.150 calculated
Hardness: 2½
Streak: Yellow-white
Colour: Yellow
RADIOACTIVE
Environments

Hydrothermal environments

Sabugalite is a secondary mineral formed in the oxidised zone of uranium veins (Webmin), associated with meta-autunite, saléeite and phosphuranylite (HOM, AM 36.671-679).

At the type locality, the Bica Mine, Sabugal, Guarda, Portugal, sabugalite is associated with meta-autunite, saléeite, phosphuranylite, milky quartz and feldspar (Dana).

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