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.
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

Hornblendite from
Mayesville Mining District, Larimer County, Colorado, USA


Locality type:Mining District
Classification
Type:Hornblendite
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hornblendite data
Locality Data:Click here to view Mayesville Mining District, Larimer County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:1046565
Long-form Identifier:1:3:1046565:9
GUID (UUID V4):0
Localities for Hornblendite in this Region
Little Bobby Vein Occurrence, Mayesville Mining District, Larimer County, Colorado, USA
Nearest other occurrences of Hornblendite
2.2km (1.4 miles) Little Bobby Vein Occurrence, Mayesville Mining District, Larimer County, Colorado, USA
24.0km (14.9 miles) Alice M. and Helen M. Beryl Occurrence, Livermore Area, Larimer County, Colorado, USA
51.2km (31.8 miles) Annie mine, Jelm Mountain Mining District, Albany County, Wyoming, USA
57.4km (35.7 miles) Unidentified Prospect (MRDS - 10080888), Jelm Mountain Mining District, Albany County, Wyoming, USA
71.6km (44.5 miles) Snowy Range Mine, Lake Albion, Boulder County, Colorado, USA
76.1km (47.3 miles) Cuprite Mine, Keystone Mining District - Douglas Creek Mining District, Medicine Bow Mountains, Albany County, Wyoming, USA
79.1km (49.2 miles) Utopia Mine, Centennial Ridge Mining District (La Plata Mining District), Albany County, Wyoming, USA
80.3km (49.9 miles) Centennial Mine, Centennial Ridge Mining District (La Plata Mining District), Albany County, Wyoming, USA
80.7km (50.2 miles) Magnolia Vein, Kekionga Mine, Magnolia Mining District, Boulder County, Colorado, USA
92.1km (57.2 miles) King Lode Claims, Hahns Peak Mining District (Columbine Mining District), Routt County, Colorado, USA
References
 
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 6, 2026 05:28:56
Go to top of page