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Formula: LiFe3+(PO4)(OH)
Anhydrous phosphate containing hydroxyl, amblygonite group
Crystal System: Triclinic
Specific gravity: 3.32 measured, 3.33 calculated
Hardness: 5
Streak: Pale yellow green
Colour: Grass-green, yellow-green
Environments
Tavorite is a late-stage secondary oxidation product of earlier phosphates
in lithium-bearing granite pegmatites, associated with
barbosalite, heterosite,
ferrisicklerite, triphylite,
hureaulite, rockbridgeite,
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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