$2,000Median
51Sold (12 mo)
$760Last sale
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Stephanite
1
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A loose grouping of lustrous double terminated metallic stephanite crystals. In good condition all around with very minimal micro-damage present. Very fine Mexican classic.
The Las Chispas Mine, located in the Arizpe Municipality of Sonora, Mexico, is a renowned producer of high-grade silver and gold. Geologically, it is a low-sulfidation epithermal deposit where mineralization is hosted in quartz-calcite veins within Tertiary volcanic rocks, primarily andesitic and rhyolitic tuffs. The district is celebrated for its spectacular specimens of stephanite, a silver antimony sulfide that occurs as jet-black, metallic, tabular crystals. These world-class stephanite crystals are often found in association with other silver minerals like polybasite and pyrargyrite within bonanza-style ore shoots. Historically, the mine was discovered in the late 1800s and saw its most significant early production between 1880 and 1930. After a long period of inactivity, modern exploration by SilverCrest Metals led to the redevelopment of the site, with new commercial production beginning in 2022. The mine remains a premier locality for both industrial silver extraction and the recovery of exceptional silver sulfosalt specimens.
Product details
SpeciesStephanite
SizeThumbnail
Dimensions2.5 x 2.5 x 2.2 cm
Listed on07/16/2026
LocalityMexico, Sonora, Chispas Mine
SKU2262047
Current owner
WM
Weinrich MineralsFeatured
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Mineral guide
Learn about Stephanite
(Ag5SbS4) — metallic-black crystals with sharp edges and signature twinning; rare, historic specimens from famed silver camps appeal to collectors.Regional guide
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