Vote for your favorite mineral in #MinCup26! - Monazite-(Ce) vs. Andalusite
It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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

Porphyry from
McKay Mine, Ophir Mining District, Powell County, Montana, USA


Locality type:Mine
Classification
Type:Porphyry
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Porphyry data
Locality Data:Click here to view McKay Mine, Ophir Mining District, Powell County, Montana, USA
Data Identifiers
Mindat Occurrence Record ID:1058800
Long-form Identifier:1:3:1058800:2
GUID (UUID V4):0
Nearest other occurrences of Porphyry
4.4km (2.8 miles) ⓘCyclone Mine, Ophir Mining District, Powell County, Montana, USA
21.2km (13.2 miles) ⓘAnderson Prospect, Blue Cloud Mining District, Lewis and Clark County, Montana, USA
32.1km (20.0 miles) ⓘPorphyry Dike Mine, Vaughn Mining District (Rimini Mining District), Lewis and Clark County, Montana, USA
34.3km (21.3 miles) ⓘMcDonald Meadows Occurrence, Seven-Up Pete Mining District, Lewis and Clark County, Montana, USA
37.0km (23.0 miles) ⓘHeddleston (Anaconda Mine - 0300490146; Mike Horse Mine - 0300490362; Carbonate Mine - 0300490040; Heddleston Deposit; Paymaster Mine - 0300490242; Midnight Mine - 0300490284; Heddleston Group), Seven-Up Pete Mining District, Lewis and Clark County, Montana, USA
43.8km (27.2 miles) ⓘElkador (Little Nancy), Colorado Mining District (Prickly Pear Mining District; Corbin Mining District), Jefferson County, Montana, USA
50.6km (31.5 miles) ⓘWarm Springs, Jefferson County, Montana, USA
50.6km (31.5 miles) ⓘG. M. Prospect, Flint Creek Range Area, Powell County, Montana, USA
52.6km (32.7 miles) ⓘWhite Pine Mine (Genevieve), Clancy-Lump Gulch Mining District, Jefferson County, Montana, USA
55.0km (34.2 miles) ⓘKit Carson Mine, Lowland Mining District, Jefferson County, Montana, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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 7, 2026 11:50:19
Go to top of page