Calcite with Hematite from Pea Ridge Mine, Sullivan, Missouri. Undamaged 65mm long calcite crystals sit perfectly perched on a small bed of calcite crystals. The specimen in accompanied by original Arkenstone label.
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Fluorapatite with Arsenopyrite from Panasqueira, Portugal. A series of well-formed and undamaged gemmy green crystals, the largest of which measures 2.2cm across crystal flat. Overall specimen size is 50x50x25mm. Specimen is accompanied by SANCO Global Resources label which references lineage to F. John Barlow Collection and specimen no. 299 which is affixed discretely to bottom of specimen.
Copper “Skull” from Centennial Mine, Houghton Co., Michigan. Seldom seen formation which occurs when copper is deposited around cobbles in a conglomerate lode. The cobble deteriorates over time and leaves the copper “skull” formation. Specimen size is 95x85x40mm. From Ed Coleman Collection.