2 mm thick greyish transparent veinlet of olshanskyite into massive sakhaite rock. Olshanskyite is divided from sakhaite white layers of secondary hydrous calcian borates. Part of the holotype (another half of the specimen was used for thermal investigations during olshanskyite description) labeled still as "moralite" (the first name of mineral connected with its find on Moral'nyi stream). Cut not polished section of the specimen. Collected by Nikolai N. Pertsev. Pavel M. Kartashov collection and photo.
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