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Hydrothermal mineral paragenesis from the Koashva apatite mine (Khibiny, Kola). Here, a Na-F-PO4-rich fluid reacted with nepheline syenite producing aegirinite (green) and crystals of pectolite (white, needle-like) and lomonosovite (dark brown, platy) cemented by villiaumite (red).
Pectolite, villiaumite and lomonosovite, Khibiny