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Formula: Mn2+4ZnAl(PO4)4(OH)(H2O)7.3.5H2O
Hydrated phosphate, manganese- and
zinc- bearing mineral
Crystal system: Monoclinic
Specific gravity: 2.63 measured, 2.630 calculated for the empirical formula, 2.627 calculated for the ideal
formula
Hardness: 2
Streak: White
Colour: Colourless to light brown
Luminescence: Does not fluoresce under long wave or short wave UV
Solubility: Easily soluble in dilute hydrochloric acid at room temperature
Environments
Pegmatites
Hydrothermal environments
Jasonsmithite is a relatively new mineral, approved in 2019 nd to date (September 2025) reported only from
the type locality.
Localities
At the type locality, the Foote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA,
jasonsmithite has been found in solution fractures and small vugs of partially oxidised
granite-phosphate
pegmatite by late-stage, low-temperature hydrothermal
alteration. Associated minerals include eosphorite,
hureaulite,
jahnsite-(MnMnMn),
kastningite,
mangangordonite,
metaswitzerite,
nizamoffite, stewartite,
variscite and
whiteite-(CaMnMn)
(HOM).
Jasonsmithite from the Foote Lithium Co.
Mine - Image
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