Imayoshiite with Sphalerite, Tobermorite (Group) and Calcite
Imayoshiite with Sphalerite, Tobermorite (Group) and Calcite
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Imayoshiite with Sphalerite, Tobermorite (Group) and Calcite (Ref: MFR6AP3)

Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region  China
223mm x 137mm x 48mm
$9905 *
One of the best, if not the best, Imayoshiite of very large size, coming from the 2021 finds that yielded the best known so far for the species. On a good size group of very lustrous twinned Sphalerite crystals several Calcite crystals with dominant scalenohedral forms have been precipitated and then were in turn covered almost entirely by whitish Tobermorite-Clinotobermorite crystals and, finally, a large quantity of Imayoshiite crystals of a pale cream color. Thanks to three "windows" in the Calcite crystals we can see the whole process of formation. This very "geological" specimen has been analyzed and we will send a copy of the analysis to the buyer.
To learn more about this species and the rest of the paragenesis discovered so far in this mine it is essential to read the article ‘Rare Borate Minerals from the Shijiangshan-Shalonggou Deposits, Hexigten Banner, Inner Mongolia, China', whose authors are César Menor-Salván, Berthold Ottens and Ed Richard, featured in Rocks & Minerals, September/October 2021, volume 96, number 5
Shijiangshan Mine, Yinwu, Linxi, Ulanhad League, Inner Mongolia Autonomous Region  China (09/2021)

Specimen size: 22.3 × 13.7 × 4.8 cm = 8.78” × 5.39” × 1.89”

Main crystal size: 1.1 × 0.8 cm = 0.43” × 0.31”
Data last checked on 1st Dec 2022 - specimen may no longer be available

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See Also

Fluorite with Dolomite, Calcite, Quartz
Shangbao mine, Hunan, China
180mm x 120mm x 60mm
Pyrrhotite on Fluorite with Calcite
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90mm x 90mm x 30mm
Elmwood Mine, Carthage, Smith County, Tennessee, USA
270mm x 160mm x 130mm
Native Arsenic with Stibnite and Calcite
Kusa Mine, Bau Sarawak, Borneo, Malaysia
120mm x 80mm x 40mm
Fengjiashan Mine, Daye Co., Hubei, China
130mm x 110mm x 55mm
Prehnite Cast After Anhydrite With Calcite
Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA
160mm x 110mm x 110mm
Calcite Var. Manganoan
Huanggang Mine, Hexigten Banner, Inner Mongolia A.R., China
170mm x 120mm x 70mm
Pyrite with Quartz, Sphalerite
Huanzala Mine, Huallanca, Dos de Mayo, Huanuco, Peru
145mm x 110mm x 75mm
Milpillas Mine, Cuitaca, Mun. de Santa Cruz, Sonora, Mexico
90mm x 60mm x 20mm
Zincite (co-type locality) on Franklinite
Franklin Mine, Franklin, Sussex Co., New Jersey, USA
50mm x 30mm x 20mm
Weloganite, Dawsonite, Quartz
Francon Quarry, Montreal, Quebec, Canada
70mm x 70mm x 30mm
Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada (TL)
70mm x 30mm x 20mm
BERYL var. MORGANITE - Urucum Claim, Brazil
Diaspore with Margarite
Ilbir Mountain, Pinarcik, Milâs District, Muğla Province, Aegean Region  Turkey
$9707 *
149mm x 36mm x 17mm
Weloganite (huge crystal) with Sphalerite, Quartz etc. in matrix.
Francon Quarry, Montreal, Quebec, Canada
80mm x 58mm x 46mm
* price is an approximate conversion and may not be accurate.

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