Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Opal-CT from
Lussat, Puy-de-Dôme, Auvergne, France

Mineral Species
Species:Opal var: Opal-CT
Formula:SiO2 · nH2O
Quality of samples:not specified / average specimens
Validity:Believed Valid
References:Mallard, E., 1890, Bull. Soc. Min., v13, p. 63
Associated Minerals Based on Photo Data:
Chalcedony1 photo of Opal-CT associated with Chalcedony at this locality.
1 photo of Opal-CT associated with at this locality.
Mineral Data:Click here to view Opal-CT data
Locality Data:Click here to view Lussat, Puy-de-Dôme, Auvergne, France
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2016, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 22, 2016 09:52:07
Go to top of page