SUPPORT US. If is important to you, click here to donate to our Fall 2019 fundraiser!
Log InRegister
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 ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

Groton Soapstone Quarry, Groton, Middlesex Co., Massachusetts, USAi
Regional Level Types
Groton Soapstone QuarryQuarry (Abandoned)
Groton- not defined -
Middlesex Co.County

This page is currently not sponsored. Click here to sponsor this page.
Map View of Soapstone Quarry Location, Groton, MA

Groton Soapstone Quarry, Groton, Middlesex Co., Massachusetts, USA
Latitude & Longitude (WGS84):
42° 37' 35'' North , 71° 34' 25'' West
Latitude & Longitude (decimal):
Locality type:
Quarry (Abandoned) - last checked 2019
Nearest Settlements:
Groton1,124 (2017)1.7km
East Pepperell2,059 (2017)4.3km
Pepperell2,504 (2017)4.6km
Ayer2,868 (2017)7.4km
Dunstable2,878 (2017)9.2km

A soapstone deposit discovered and first worked by John Fitch in 1828, whose farm was located on Common Street. Beginning in 1864 the quarry was operated by the Groton Soapstone Company, later called the Union Stone Company.

The Groton Soapstone Company was legally dissolved in 1872.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

1 valid mineral.

Detailed Mineral List:

Reference: Gleba, 1978. Massachusetts Mineral & Fossil Localities
Formula: Mg3Si4O10(OH)2
Reference: Gleba, 1978. Massachusetts Mineral & Fossil Localities
Talc var: Steatite
Formula: Mg3(Si4O10)(OH)2
Reference: Gleba, 1978. Massachusetts Mineral & Fossil Localities

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
var: Steatite9.EC.05Mg3(Si4O10)(OH)2
Unclassified Minerals, Rocks, etc.

List of minerals arranged by Dana 8th Edition classification

Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Unclassified Minerals, Mixtures, etc.
var: Steatite

List of minerals for each chemical element

H TalcMg3Si4O10(OH)2
H Talc (var: Steatite)Mg3(Si4O10)(OH)2
O TalcMg3Si4O10(OH)2
O Talc (var: Steatite)Mg3(Si4O10)(OH)2
Mg TalcMg3Si4O10(OH)2
Mg Talc (var: Steatite)Mg3(Si4O10)(OH)2
Si TalcMg3Si4O10(OH)2
Si Talc (var: Steatite)Mg3(Si4O10)(OH)2


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A) In-text Citation No.
Green, Samuel Abbott (1912), The Natural History and the Topography of Groton, Massachusetts, Cambridge, Massachusetts, University Press.
General Court of Massachusetts Acts and Resolves of 1872

External Links

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © and the Hudson Institute of Mineralogy 1993-2019, except where stated. Most political location boundaries are © OpenStreetMap contributors. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: December 12, 2019 14:16:54 Page generated: December 10, 2019 15:28:45
Go to top of page