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

Actinolite from
Black Forest Mine (Missouri Monarch Consolidated mine), Spruce Mountain Mining District, Elko County, Nevada, USA


Locality type:Mine
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 Black Forest Mine (Missouri Monarch Consolidated mine), Spruce Mountain Mining District, Elko County, Nevada, USA
Data Identifiers
Mindat Occurrence Record ID:1251868
Long-form Identifier:1:3:1251868:1
GUID (UUID V4):0
Nearest other occurrences of Actinolite
5.1km (3.2 miles) ⓘSpruce Standard mine (Standard mine), Spruce Mountain Mining District, Elko County, Nevada, USA
31.5km (19.6 miles) ⓘDolly Varden Mine, Dolly Varden Mining District, Elko County, Nevada, USA
56.6km (35.2 miles) ⓘValley View mine (Owl claim; Hankins property), Road Canyon area, Valley View Mining District, Elko County, Nevada, USA
63.0km (39.2 miles) ⓘStar Tungsten Mine (Star Mine; Ogilvie Mine; Harrison Pass Mine), Harrison Pass Mining District, Elko County, Nevada, USA
96.2km (59.8 miles) ⓘLucy L Mine, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA
96.4km (59.9 miles) ⓘGold Hill Mine, Gold Hill, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA
97.2km (60.4 miles) ⓘYellow Hammer Mine, Clifton, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA
97.5km (60.6 miles) ⓘDoctor Mine, Clifton, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA
97.7km (60.7 miles) ⓘRex Prospect, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, USA
97.7km (60.7 miles) ⓘReaper Mine, Clifton, Gold Hill Mining District (Clifton Mining District), Tooele County, Utah, 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 02:52:49
Go to top of page