"Rare Mineral" Goosecreekite on Chalcedony # DEN 049
A Chalcedony Geode containing Crystals of Brown Heulandite, sparkling Apophyllite & Stilbite - #B46
A Complex 4-in-1 Stilbite + Calcite + Apophyllite + Chalcedony Specimen - #D18
A complex formation of Heulandite, Stilbite and Chalcedony - F26
A crystalline sculpture of Chalcedony, Calcite, Heulandite & Stilbite - #20T149
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