Grey fibrous Denisovite aggregate from the type locality. Associating mineral is black prismatic Aegirin. Specimen of superb quality from author of the specie. I myself was unable to collect something similar on the locality during many visits of it. Specimen size is 5x3x0.8 cm. Collected by Yurii P. Men'shikov in a late 70th. Pavel M. Kartashov collection (#1048) and photo.
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Photo added: 25th Dec 2007