Formula: Mn2+7(SiO4)3(OH)2
Nesosilicate, humite group
Specific gravity: 3.848
Hardness: 5½ to 6
Streak: Very pale pink to white
Colour: Pink, violet-red, brownish-red to brown
Environments:
Metamorphic environments
Hydrothermal environments
At Franklin, New Jersey, leucophoenicite is a late-stage hydrothermal or contact zone mineral in veins and
skarn in a
metamorphosed stratiform zinc-manganese orebody
(AM55.1146), associated with willemite,
franklinite, calcite,
vesuvianite, garnet,
sussexite, rhodochrosite,
pyrochroite, tephroite,
sonolite, jerrygibbsite, glaucochroite,
manganosite, copper, and
zincite
(HOM).
At the Kombatmine, Namibia, leucophoenicite is associated with barysilite,
spessartine,
vesuvianite,
baryte, copper and
hausmannite
(HOM).
Common impurities: Fe,Mg,Zn,Ca,Na,K,H2O
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