Vote for your favorite mineral in #MinCup26! - Cuprite vs. Orpiment
It's a fiery match of vibrant red Cuprite and just as saturated orange Orpiment battle for your votes!
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Opal from
Williams Opal Mine (Three Mile Hill Mine), Coolgardie, Coolgardie Shire, Western Australia, Australia


01213340017367957117673.jpg
Precious Opal

Williams Opal Mine, Coolgardie, Coolgardie Shire, Western Australia, Australia
05882330017721311069570.jpg
Precious Opal

Williams Opal Mine, Coolgardie, Coolgardie Shire, Western Australia, Australia
02933970017272031349387.jpg
Precious Opal

Williams Opal Mine, Coolgardie, Coolgardie Shire, Western Australia, Australia
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 Williams Opal Mine (Three Mile Hill Mine), Coolgardie, Coolgardie Shire, Western Australia, Australia
Data Identifiers
Mindat Occurrence Record ID:70573
Long-form Identifier:1:3:70573:4
GUID (UUID V4):0
Nearest other occurrences of Opal
20.1km (12.5 miles) ⓘGrosmont Mica Mine, Grosmont district, Coolgardie, Coolgardie Shire, Western Australia, Australia
46.9km (29.2 miles) ⓘLady Bountiful Extended Gold Mine, Mount Pleasant, Black Flag Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
53.3km (33.1 miles) ⓘGrants Patch opalite area, Grant's Patch, Black Flag Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
55.8km (34.7 miles) ⓘBlack Flag Road opalite area, Grant's Patch, Black Flag Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
63.4km (39.4 miles) ⓘBulong opal deposits, Bulong Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
63.4km (39.4 miles) ⓘTaurus chrysoprase deposit, Bulong Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
64.1km (39.8 miles) ⓘBulong Area magnesite deposits, Bulong Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
64.6km (40.2 miles) ⓘBulong Ni Mine, Bulong Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
69.2km (43.0 miles) ⓘMount Monger, Mount Monger Goldfield, Kalgoorlie-Boulder Shire, Western Australia, Australia
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.
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 5, 2026 11:04:50
Go to top of page