Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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

Tridymite from
Lemolo Lake, Douglas County, Oregon, USA


00108190017272021401736.jpg
Tridymite

Lemolo Lake, Douglas County, Oregon, USA
01728330017272021412510.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
07192020017272026804648.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
08410630017272026811786.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
00108190017272021401736.jpg
Tridymite

Lemolo Lake, Douglas County, Oregon, USA
01728330017272021412510.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
08935800017368152549617.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
02105740017368152555170.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
00108190017272021401736.jpg
Tridymite

Lemolo Lake, Douglas County, Oregon, USA
01728330017272021412510.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
07192020017272026804648.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
08410630017272026811786.jpg
Tridymite, etc.

Lemolo Lake, Douglas County, Oregon, USA
Locality type:Lake
Classification
Species:Tridymite
Formula:SiO2
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Enstatite
Pseudobrookite
Associated Minerals Based on Photo Data:
Pseudobrookite16
Enstatite14
Diopside2
Ilmenite2
Aegirine1
Data
Mineral Data:Click here to view Tridymite data
Locality Data:Click here to view Lemolo Lake, Douglas County, Oregon, USA
Photo GalleryView Gallery (9 photos)
Data Identifiers
Mindat Occurrence Record ID:46452
Long-form Identifier:1:3:46452:7
GUID (UUID V4):0
Nearest other occurrences of Tridymite
10.6km (6.6 miles) ⓘLake Creek Quarry, Diamond Lake, Douglas County, Oregon, USA
26.5km (16.5 miles) ⓘSummit Rock, Klamath County, Oregon, USA
89.4km (55.6 miles) ⓘNewberry Caldera, Newberry National Volcanic Monument, Deschutes County, Oregon, USA
99.4km (61.8 miles) ⓘObsidian Cliffs, North Sister Mountain, McKenzie Pass, Lane County, Oregon, USA
References
Henderson, William A. (1985) Microminerals of the Western Volcanics. The Mineralogical Record, 16 (2) 137-145
 
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 3, 2026 03:24:32
Go to top of page