Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of 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

Chlorite Group from
Croft Mine, Oscawana Corners, Town of Putnam Valley, Putnam County, New York, USA


Locality type:Mine
Classification
Species:'Chlorite Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chlorite Group data
Locality Data:Click here to view Croft Mine, Oscawana Corners, Town of Putnam Valley, Putnam County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:80878
Long-form Identifier:1:3:80878:5
GUID (UUID V4):0
Nearest other occurrences of Chlorite Group
4.9km (3.0 miles) Denny Magnetite Mine, Town of Putnam Valley, Putnam County, New York, USA
10.1km (6.3 miles) Mahopac Mines, Town of Carmel, Putnam County, New York, USA
14.3km (8.9 miles) Crugers Emery Mine, Montrose, Cortlandt Township, Westchester County, New York, USA
16.2km (10.1 miles) Shaft 7, Delaware Aqueduct, Town of Fishkill, Dutchess County, New York, USA
22.1km (13.7 miles) Interstate 84 road cuts, Town of Southeast, Putnam County, New York, USA
24.0km (14.9 miles) Ossining (Sing Sing), Westchester County, New York, USA
27.6km (17.2 miles) Clove Mine (Wilks Mine), Village of Monroe, Town of Monroe, Orange County, New York, USA
30.1km (18.7 miles) Interstate 84 and US Route 202 interchange, Danbury, Fairfield County, Connecticut, USA
32.1km (20.0 miles) Western Connecticut State University, Danbury, Fairfield County, Connecticut, USA
34.5km (21.4 miles) Augusta Mine, Southfields, Town of Tuxedo, Orange County, New York, 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 3, 2026 12:01:58
Go to top of page