Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Opal from
Laodonggou Mine, Ejin Banner (Ejina Co.), Alxa League (Alashan Prefecture), Inner Mongolia, China


Locality type:Mine
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Laodonggou Mine, Ejin Banner (Ejina Co.), Alxa League (Alashan Prefecture), Inner Mongolia, China
Data Identifiers
Mindat Occurrence Record ID:734126
Long-form Identifier:1:3:734126:7
GUID (UUID V4):0
References
Dianhao Huang and Baolin Wang (1997): Journal of Precious Metallic Geology 6(2), 93-100
 
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