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Locality: Einstein Mine (Silvermines District), Madison County, Missouri
Provenance: Historic Charley Cox Collection (Missouri School of Mines)
Dimensions: 4.0\" x 3.0\" x 2.0\"
Weight: 1 lb 9.4 oz (720 grams)
Form: Chunky Cabinet Display (Mirror-Polished Front Face, Cut Base, Natural Rough Back)
The Story of the Stone: High-Contrast Hydrothermal Breccia
Carrying exceptional heft for its 4-inch footprint, this chunky cabinet specimen puts the dramatic force of Missouri’s Precambrian hydrothermal history on full display.
The polished face reveals stark, angular clasts of milky-white quartz and topaz vein material shattered and cemented within a rich matrix of brick-red hematite a chlorite apatite alteration with a the showy green and all locked with a dense jaspellite. Interwoven throughout the silica are cloudy, dark metallic ore concentrations rich in wolframite, argentiferous (silver-bearing) galena, and authentic arsenopyrite.
Cut with a solid, thick 2-inch base, this piece stands completely upright on its own. The contrast between the brilliant mirror-polished display face and the raw, weathered natural rind on the back provides a full geological cross-section of the vein wall.
Historic Provenance: The Charley Cox Collection
Harvested from the legendary Einstein Mine—the historic 19th-century silver and tungsten deposit along the St. Francis River—this piece was originally part of the private collection of Charley Cox, an alumnus of the Missouri School of Mines (MSM). Preserved in a private barn collection for decades, it represents classic Silvermines material that is no longer available, with the old girl now collapsing and flooded
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