$200Median
91Sold (12 mo)
$300Last sale
Updated 4d ago
Marcasite from Sweetwater Mine, Missouri, USA
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Sparkling golden crystals of marcasite measuring to 0.2 cm in size completely covering all sides of this breccia matrix. No points of attachment and in great condition.The Sweetwater Mine, situated on the southern end of the Viburnum Trend in Reynolds County, Missouri, opened in the late 1960s as part of the expansion of the Southeast Missouri Lead District. Geologically, the deposit is a classic Mississippi Valley-type (MVT) ore body hosted within the porous platform carbonates of the Upper Cambrian Bonneterre Dolomite. Mineralization primarily consists of galena, sphalerite, and chalcopyrite, accompanied by prominent gangue minerals such as spectacular scalenohedral calcite and pyrite. While several historic mines in the district have wound down operations over the decades, the Sweetwater Mine has remained an active and vital part of regional production under modern operators.
Product details
SpeciesMarcasite
SizeMiniature
Dimensions5.0 x 3.5 x 2.2 cm
Listed on11/03/2026
LocalityUSA, Missouri, Sweetwater Mine
SKU9892126
Current owner
WM
Weinrich MineralsFeatured
3,650 for sale·9 sold
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Mineral guide
Learn about Marcasite
orthorhombic dimorph of pyrite with cockscomb blade clusters, metallic luster and iridescent tarnish; prized for sculptural form yet requires caref…Regional guide
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