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Imayoshiite with Datolite
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Glassy colorless crystals scattered throughout this matrix with botryoidal crystallized datolite.
The Shijiangshan Mine, located in the Hexigten Banner (Keshiketeng County) of Inner Mongolia, China, is renowned for its complex polymetallic skarn deposits formed via intense contact metamorphism and hydrothermal activity. These geological settings feature intricate silicate- and borate-rich pockets that host a wide array of rare secondary minerals. Among these discoveries is the mineral imayoshiite, a very rare hydrated calcium aluminum carbonate-borate species belonging to the ettringite group. At Shijiangshan, imayoshiite forms as colorless, glassy euhedral crystals within low-temperature hydrothermal vugs during the late skarn stage, providing exceptional high-symmetry sulfate-rich specimens that have expanded the known mineralogical data for this rare group.
Product details
SpeciesDatolite
SizeLarge Cabinet
Dimensions18.0 x 11.5 x 3.0 cm
Listed on07/16/2026
LocalityChina, Inner Mongolia, Shijiangshan Mine
SKU9505893
Current owner
WM
Weinrich MineralsFeatured
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Mineral guide
Learn about Datolite
calcium borosilicate with glassy crystals and Keweenaw nodules; forms in hydrothermal and skarn systems, prized for color variety and luster.Regional guide
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