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pitch-blende, pitchblende N CHEM

pitch-blende (form of uranium)

pitch-blende (form of uranium)

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The more stable cubic form is known also as zinc blende or sphalerite. en.wikipedia.org

Another common structure is the zincblende structure (also spelled zinc blende), named after the mineral zincblende (sphalerite). en.wikipedia.org

Very small amounts of blende (zinc sulphide) and chalcopyrite (copper-iron sulphide) were found in the deeper levels, but never in workable quantities. en.wikipedia.org

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