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Voloshinite: Rb(LiAl1.5[ ]0.5)(Al0.5Si3.5)O10F2
Comments: Lower BSE image shows irregular voloshinite grain (center 1) surrounded by albite (ALB), trilithionite (T), and pollucite (P). Location: Vasin-yl'k Mt., Voroni Tundry, Kola Peninsula, Russia. Scale: See Images. © Diederik Visser