Roggianite [72979-38-5] with the ideal formula Ca16Al16Si32O104.42H2O occurs as well formed prismatic crystals (av. dimension 50 μm) within vugs of an albititic dike at Pizzo Marcio, Val Vigezzo, Novara, Italy. Assocd. minerals are bertrandite, scheelite, molybdenite, and chrysoberyl, none of which were reported at the roggianite type locality.
Second finding of roggianite / Vezzalini, Maria Giovanna; V., Mattioli. - In: PERIODICO DI MINERALOGIA. - ISSN 0369-8963. - STAMPA. - 48:(1979), pp. 15-20.
Second finding of roggianite
VEZZALINI, Maria Giovanna;
1979
Abstract
Roggianite [72979-38-5] with the ideal formula Ca16Al16Si32O104.42H2O occurs as well formed prismatic crystals (av. dimension 50 μm) within vugs of an albititic dike at Pizzo Marcio, Val Vigezzo, Novara, Italy. Assocd. minerals are bertrandite, scheelite, molybdenite, and chrysoberyl, none of which were reported at the roggianite type locality.
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