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

Plagioclase from
Happy Canyon meteorite, Armstrong County, Texas, USA


Locality type:Meteorite Fall Location
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Comments:Plagioclase in the predominant coarse-grained litholgy is albitic (An14), but in the fine-grained lithology the anorthositic component is unusually high for Enstatite chondrites (An25)[McCoy et al.,1995]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Happy Canyon meteorite, Armstrong County, Texas, USA
Data Identifiers
Mindat Occurrence Record ID:807809
Long-form Identifier:1:3:807809:4
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
52.9km (32.9 miles) ⓘUmbarger meteorite, Randall County, Texas, USA
60.0km (37.3 miles) ⓘDimmitt meteorite, Dimmitt, Castro County, Texas, USA
64.2km (39.9 miles) ⓘClarendon meteorite, Clarendon area, Donley County, Texas, USA
78.7km (48.9 miles) ⓘPlainview (1917) meteorite, Hale County, Texas, USA
References
Watters, T. R. & Prinz, M (1979) Aubrites - Their origin and relationship to enstatite chondrites. In: Lunar and Planetary Science Conference, 10th, Houston, Tex., March 19-23, 1979, Proceedings. Volume 1. (A80-23557 08-91) New York, Pergamon Press, Inc., 1979, p. 1073-1093.
McCoyet al., (1995) Origin and history of impact-melt rocks of enstatite chondrite parentage, Geochimica et Cosmochimica Acta 59 (1):161-175. (Jan 1995)
 
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 03:42:06
Go to top of page