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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Precious Opal from
Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia


06462460017272324596722.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
06948820017271980513851.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
04376880017362274163609.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
06510300017272100334842.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
04506020017272100346665.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
04376880017362274163609.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
06510300017272100334842.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
06948820017271980513851.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
04376880017362274163609.jpg
Precious Opal

Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
Locality type:Mine
Classification
Species:Opal var: Precious Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Precious Opal data
Locality Data:Click here to view Cowarna opal mine, Cowarna Downs Station, Kalgoorlie-Boulder Shire, Western Australia, Australia
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:848075
Long-form Identifier:1:3:848075:0
GUID (UUID V4):0
References
Fetherston, J. Michael; Stocklmayer, Susan M.; Stocklmayer, Vernon C. (2013) Gemstones of Western Australia. Mineral Resources Bulletin 25 (1st ed.). Geological Survey of Western Australia 306pp.
 
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