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

Heterosite from
Fletcher Mine, Groton, Grafton County, New Hampshire, USA


06320190017363707265377.jpg
Heterosite

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
06060180017272023443158.jpg
Heterosite

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
00783070017272035823813.jpg
Heterosite

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
06060180017272023443158.jpg
Heterosite

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
06320190017363707265377.jpg
Heterosite

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
06060180017272023443158.jpg
Heterosite

Fletcher Mine, Groton, Grafton County, New Hampshire, USA
Locality type:Mine
Classification
Species:Heterosite
Formula:Fe3+(PO4)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heterosite data
Locality Data:Click here to view Fletcher Mine, Groton, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:38306
Long-form Identifier:1:3:38306:4
GUID (UUID V4):0
Nearest other occurrences of Heterosite
5.1km (3.2 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
5.3km (3.3 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
5.8km (3.6 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
9.5km (5.9 miles) ⓘEight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA
11.9km (7.4 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
15.8km (9.8 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
56.3km (35.0 miles) ⓘChandlers Mill Quarry, Newport, Sullivan County, New Hampshire, USA
59.2km (36.8 miles) ⓘSargent Mine, Claremont, Sullivan County, New Hampshire, USA
74.9km (46.5 miles) ⓘParker Mountain Mine, Strafford, Strafford County, New Hampshire, USA
77.6km (48.2 miles) ⓘFitzgibbons Mine, Alstead, Cheshire County, New Hampshire, USA
References
Kreinik, Susanna T. (2022) Phosphate Mineralogy and Paragenesis of the Fletcher Pegmatite, North Groton, New Hampshire. M.S. Thesis, 3039. University of New Orleans. 1-105
 
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 09:35:00
Go to top of page