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An impressive calcite with marcasite specimen from the Buick (Amax) Mine near Bixby, Iron County, Missouri, USA. Collected in the 1960s, this specimen comes from the Steve Potvin collection and is accompanied by an older Crystal Brothers label identifying the Amax Mine.
The specimen features a prominent, elongated honey-yellow calcite crystal rising dramatically from a broad, densely crystallized matrix. The calcite displays translucent golden coloration, a vitreous luster and an unusual tapered form that creates a striking focal point. The surrounding matrix is covered with numerous small, reflective dolomite crystals and some metallic crusts of marcasite. There is a minor nick on the top of the main crystal.
The specimen has a particularly appealing architectural composition, with the upright calcite standing above an expansive, sparkling base. Its distinctive crystal form, strong visual contrast and documented 1960s collection history make it an attractive example of classic Missouri mineralization and a compelling addition to a cabinet collection.
Minerals: Calcite, Marcasite, Dolomite Locality: Buick (Amax) Mine, Bixby, Iron County, Missouri, USA Crystal System: Calcite – Trigonal; Marcasite – Orthorhombic Mineral Class: Carbonate; Sulfide Provenance: Ex Steve Potvin Collection; collected in the 1960s Dimensions: 9 × 8.5 × 9 cm