$335Median
753Sold (12 mo)
$125Last sale
Imayoshiite with Shinichengite, Sphalerite
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Very fine for this rare species with coloress crystals across the top of a sphalerite matrix. Shinichengite is present as well. In good condition.
The Shijiangshan Mine, situated in Hexigten Banner (Keshiketeng County), Chifeng City (Ulanhad League) in Inner Mongolia, China, is renowned for its complex polymetallic skarn deposits formed via intense contact metamorphism and hydrothermal activity. Geologically, the region features carbonate and silicate rock sequences intruded by Mesozoic magmatic bodies, creating diverse skarn pockets enriched in rare elements. Within these hydrothermally altered vugs, the mine has produced exceptional mineral specimens, including imayoshiite. Imayoshiite is an ultra-rare hydrated calcium carbonate-borate mineral belonging to the ettringite group. Formed during late-stage low-temperature hydrothermal activity, it occurs as tiny, colorless hexagonal crystals and stands out scientifically for its unusual chemical structure incorporating both borate and carbonate complexes.
Product details
SpeciesSphalerite
SizeLarge Cabinet
Dimensions15.5 x 10.0 x 5.5 cm
Listed on09/07/2026
LocalityChina, Inner Mongolia, Shijiangshan Mine
SKU1115637
Current owner
WM
Weinrich MineralsFeatured
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Mineral guide
Learn about Sphalerite
diverse colors from honey to black, gemmy, diamond-like luster, and localities worldwide; a collector favorite for dramatic crystals and color.Regional guide
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