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

Actinolite from
Blowout Pit (Columbia Steel Mine), Blowout Hollow, Iron Mountain, Pinto Iron Mining District (Pinto Mining District; Silver Belt Mining District), Iron Springs Mining District, Iron County, Utah, USA


Locality type:Ore Body
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Blowout Pit (Columbia Steel Mine), Blowout Hollow, Iron Mountain, Pinto Iron Mining District (Pinto Mining District; Silver Belt Mining District), Iron Springs Mining District, Iron County, Utah, USA
Data Identifiers
Mindat Occurrence Record ID:184019
Long-form Identifier:1:3:184019:3
GUID (UUID V4):0
Nearest other occurrences of Actinolite
3.8km (2.4 miles) ⓘHomestake Mine, Iron Mountain, Pinto Iron Mining District (Pinto Mining District; Silver Belt Mining District), Iron Springs Mining District, Iron County, Utah, USA
13.5km (8.4 miles) ⓘDesert Mound Orebody, Granite Mountain, Iron Springs Mining District, Iron County, Utah, USA
17.1km (10.6 miles) ⓘArmstrong Mine, Granite Mountain, Iron Springs Mining District, Iron County, Utah, USA
17.4km (10.8 miles) ⓘSouth Orebody, Lindsay Hill Mine, Granite Mountain, Iron Springs Mining District, Iron County, Utah, USA
17.7km (11.0 miles) ⓘLindsay Hill Mine, Granite Mountain, Iron Springs Mining District, Iron County, Utah, USA
17.9km (11.1 miles) ⓘVermillion Mine, Granite Mountain, Iron Springs Mining District, Iron County, Utah, USA
18.5km (11.5 miles) ⓘEast Pioche Mine, Granite Mountain, Iron Springs Mining District, Iron County, Utah, USA
83.9km (52.1 miles) ⓘCreole Mine, Lincoln Mining District, Beaver County, Utah, USA
99.5km (61.8 miles) ⓘOK Mine (Milford Pit), Beaver Lake Mining District, Beaver County, Utah, USA
References
Bullock, Kenneth C. (1981) Minerals and mineral localities of Utah. Bulletin 117. Utah Geological and Mineral 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 5, 2026 07:54:31
Go to top of page