Hemimorphite, Calcite

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An impressive cabinet plate of lustrous, translucent and colorless hemimorphite blades to 2.5 cm from the less well-known Summit Mine of Montana. The hemimorphite blades have a rich, preferential coating of snow-white, globular calcite. The Summit Mine has produced some of the finest hemimorphite in the United States and this is a fine, highly representative, large specimen. From an old US collection.