Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:TSCHORTNERITE
Name:Tschörtnerite
Formula:Ca4(K,Ca,Sr,Ba)3Cu3(OH)8(Si12Al12O48) · nH2O (n more than 20)
Crystal System:Cubic
Strunz Nr:8/J.20-30
Group:Zeolite Group
References:AM 83 (1998), 607; EJM 10 (1998), 1037
Type Locality:Mayener Bellberg (Bellerberg), Laacher See area, Eifel, Rheinland-Pfalz, Germany

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