Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:HYDROWOODWARDITE
Formula:[Cu1-xAlx(OH)2][(SO4)0.5x(H2O)n] (x lower than 0.67; n = about 1.5x)
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:6/D.08-42
Group:Woodwardite Group
References:NJMM (1999), 75; AM 84 (1999), 1465; Min. Abstr. 50/3 (1999), 379; MR 2 (2000), 203; HB5 (2003)
Type Locality:Grube St Briccius, Königswalde, Annaberg, Sachsen (Saxony), Germany

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