Mazzite-Mg : (Mg,K,Ca)5(Si26Al10)O72·28H2O
Offretite : KCaMg(Si13Al5)O36·15H2O
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“Rare sample showing mazzite in paragesis with Offretite and Phillipsite. Collected ca. 1981. Field of View is ca. 2.5 mm. Zeolite Collection of Volker Betz.”
Volker Betz - 4th January 2007
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