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Ralph Clark

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Ettringite, Manganite

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Inesite

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Shigaite, Barite, Rhodochrosite

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Hausmannite

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Mimetite

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Kämmererite (Chromium-rich Clinochlore)

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Adamite

Miniature

Rhodonite

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Afghanite

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Cronstedtite, Marcasite

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Pyrosmalite-(Mn), Bustamite

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Silver (Spinel-law twin)

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Sillimanite

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Phenakite

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Azurite, Calcite

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Cronstedtite, Marcasite

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Dioptase

Miniature

Spessartine, Fluorite, Feldspar, Smoky Quartz

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Topaz

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Babingtonite with Prehnite - Connecticut

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Proustite from Chanarcillo ex. Ralph Clark

Unknown size

Anatase

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Willemite - Tsumeb

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Shigaite with Rhodochrosite and Barite

Miniature

Cerussite

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Dioptase

Miniature

Veszelyite

Miniature