Whiteite-(MnMnMn)

whiteite-(MnMnMn)

eosphorite

fairfieldite

jasonsmithite

Images

Formula: Mn²⁺Mn²⁺Mn²⁺₂Al₂(PO₄)₄(OH)₂.8H₂O
Hydrated phosphate containing hydroxyl, whiteite subgroup, jahnsite group, manganese-bearing mineral
Crystal System: Monoclinic
Specific gravity: 2.82 calculated
Colour: Colourless to very pale brown
Environments

Pegmatites

Whiteite-(MnMnMn) is a new mineral, approved in 2021.

Localities

At the type locality, the Foote Lithium Co. Mine, Kings Mountain Mining District, Cleveland county, North Carolina, USA, whiteite-(MnMnMn) was found in small vugs of partially oxidised pegmatite minerals on the East dump of the mine, in association with eosphorite, hureaulite, fairfieldite, mangangordonite, whiteite-(CaMnMn) and jasonsmithite. It occurs as sugary aggregates of blade-like crystals up to 0.1 mm long and as epitaxial overgrowths on whiteite-(CaMnMn) (MM 85.6.862-867).

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