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Comments: Gray, octahedral crystal of plumbomicrolite.
Location: Ploskaya Mt, Keivy Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia.
Scale: 20x17x13 mm.
© John Betts - Fine Minerals
Comments: Large octahedral crystal of brownish black plumbomicrolite on matrix.
Location: Berg Ploskaya, West Keivy Massif, Kola Peninsula, Russia.
Scale: See Image.
© Paul M. Schumacher