Anhydrous phosphate containing hydroxyl, amblygonite group
Specific gravity: 3.32
Streak: Pale yellow green
Colour: Grass-green, yellow-green
Tavorite is a late-stage secondary oxidation product of earlier phosphates
in lithium-bearing granite pegmatites, associated with
jahnsite and vivianite (HOM, AM 40.952-966).
At the type locality, the Sapucaia mine, Minas Gerais, Brazil, tavorite occurs as late stage phosphate mineralisation disseminated in porous triphylite and heterosite in a granite pegmatite, associated with barbosalite, hureaulite, jahnsite, rockbridgeite, triphylite and vivianite (Mindat, Dana).
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