Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Smectite Group from
Yamansu quartz deposit, Yizhou District, Hami Prefecture (Kumul Prefecture; Qumul Prefecture), Xinjiang, China


Locality type:Deposit
Classification
Species:'Smectite Group' (not an IMA approved species)
Formula:A0.3D2-3[T4O10]Z2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Smectite Group data
Locality Data:Click here to view Yamansu quartz deposit, Yizhou District, Hami Prefecture (Kumul Prefecture; Qumul Prefecture), Xinjiang, China
Data Identifiers
Mindat Occurrence Record ID:1893935
Long-form Identifier:1:3:1893935:4
GUID (UUID V4):0
References
Feng, Lang; Tan, Zhixiong; Chen, Junyuan; Deng, Yufeng; Zhan, Jianhua; Kalias’ha, Hayireti; Xiao, Ying; Cao, Shengxuan; Yuan, Feng (2026) Genesis and quality evaluation study of high-purity quartz deposit hosted in NYF-type granite pegmatite in the Central Asian Orogenic Belt, NW China. Ore Geology Reviews, 191. 107192 doi:10.1016/j.oregeorev.2026.107192
 
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