Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:MICHEELSENITE
Formula:(Ca,Y)3Al(PO3OH,CO3)(CO3)(OH)6 · 12H2O
Crystal System:Hexagonal
Strunz Nr:5/C.07-210
Group:Ettringite Group
References:NJMM (2001), 337, AM 87 (2002), 356; MR 33 (2002), 165
Type Locality:Mont Saint-Hilaire, Rouville Co., Québec, Canada
Nanna pegmatite, Narsaarsuup Qaava, Greenland
Comments:Sulfate-free member of the ettringite group

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