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Galena (twinned) with Sphalerite and Quartz - Nikolaevskiy Mine, Dalnegorsk, Primorsky Krai, Russia More info: https://www.irocks.com/minerals/specimen/52362 This is an old Russian classic mineral from the 1990s: a large, geometric, pseudohexagonal spinel-twinned galena crystal is perched perfectly on a base of sphalerite, quartz and additional galena crystals. The big, 3.3 cm, tabular and twinned, silvery-gray galena crystal displays a bright luster and and a cool metallic surface texture that