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
Altermark talc mine, Altermark area, Rana, Nordland, Norway


06774860017272033775095.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
06705280017272299413826.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
04608680017272033781400.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
00957830017272033796374.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
04692140017365769787708.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
05837150017363315927668.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
06637700017365769781408.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
09056450017365769784296.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
06774860017272033775095.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
06705280017272299413826.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
04608680017272033781400.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
00957830017272033796374.jpg
Actinolite, etc.

Altermark talc mine, Altermark area, Rana, Nordland, Norway
Locality type:Mine
Classification
Species:Actinolite
Formula:◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Comments:Birtel (2002) consistently uses the term "smaragdite" on the actinolite due to a small chromium content originating from chromite in the dunite.
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Talc20
Data
Mineral Data:Click here to view Actinolite data
Locality Data:Click here to view Altermark talc mine, Altermark area, Rana, Nordland, Norway
Photo GalleryView Gallery (15 photos)
Data Identifiers
Mindat Occurrence Record ID:88569
Long-form Identifier:1:3:88569:6
GUID (UUID V4):0
Nearest other occurrences of Actinolite
7.3km (4.5 miles) ⓘMo i Rana, Rana, Nordland, Norway
41.5km (25.8 miles) ⓘFront of Enga glacier, Holandsfjorden, Meløy, Nordland, Norway
42.6km (26.5 miles) ⓘBleikvatnet, Hemnes, Nordland, Norway
61.8km (38.4 miles) ⓘSpilderdalen Skarn Occurrence, Ørnes, Meløy, Nordland, Norway
References
Birtel, Sandra (2002) Fluid-Gesteinswechselwirkung an alpinotypen ultramafischen Gesteinen der norwegischen Kaledoniden. Dissertation zur Erlangung des Doktorgrades , Der Geowissenschaftlichen Fakultät der Albert-Ludwigs Universität Freiburg. Freiburg, Germany.
 
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 09:03:34
Go to top of page