Prismatic crystals of free growth into cavity within massive armstrongite agregate from the type locality. Yellowish fibrous asbest-like armstrongite also present. Associating mineral is aegirine. FOV is ~12x10 mm. Collected by Arkadii Goreglyad in 1970. Pavel M. Kartashov collection and photo.
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Photo added: 22nd Nov 2007