Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:CHALCOPHYLLITE
Formula:Cu2+18Al2(AsO4)3(SO4)3(OH)27 · 33H2O
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:7/D.20-50
References:BM 75 (1952), 112; L 10 (1999), 9; HB4 (2000)

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