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Formula: NaAl3(PO4)2(OH)2F2.2H2O
Phosphate, wardite group
Crystal System: Tetragonal
Specific gravity: 2.760 calculated
Hardness: 5
Streak: White
Colour: Colourless to white or cream-coloured
Environments
Fluorowardite is a rare mineral, to date (March 2022) reported only from the type locality, approved in 2012.
Localities
At the type locality, the Silver Coin mine, Valmy, Iron Point Mining District, Humboldt county, Nevada, USA, fluorowardite is
a secondary mineral in a fluorine-rich low-temperature
secondary phosphate assemblage, as tetragonal-pyramidal crystals up to 0.1 mm
across. Associated minerals include
alunite, baryte,
cacoxenite, chlorargyrite,
fluorapatite, goethite, fluorine-rich
gorceixite, iangreyite,
iodargyrite, jarosite,
kidwellite,
kintoreite/plumbogummite,
krásnoite, leucophosphite,
lipscombite/zinclipscombite,
meurigite-Na, metavariscite,
fluorine-rich millisite, morinite,
quartz, rockbridgeite,
strengite/variscite and
turquoise/chalcosiderite
(HOM, Mindat).
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