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Calcite with Quartz --- Huanggang Mine, Inner Mongolia, China

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Tantalite-(Mn), MnTa2O6, Quartz, Muscovite, Dara-i-Pech pegmatite field, Chapa Dara District, Konar Province, Afghanistan. Dimensions: 48 x 38 x 40 mm. Copyright: © Joseph A. Freilich

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Calcite with Cavansite - Wagholi Quarries, Maharashtra, India Size: 3.5 cm

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TILTED ROCK LAYERS: The sedimentary layers in this large roadcut near Denver, CO. can be clearly recognized by the variation in color. This deformation is related to the uplift of the Rocky Mountains

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An excellent Dioptase specimen from the Tsumeb Mine. Crystal Classics Minerals

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Stunning combination of Elbaite with albite and Lepidolite. 11.5 cm tall. From Oceanview Mine, San Diego County, California. © DI Anton Watzl

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An unusual cluster of spire-like crystals of gemmy blue to opaque white Aquamarine measuring to 4.3cm tall from the Mimoso do Sul mine, Espírito Santo, Brazil. Crystal Classics Minerals

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