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

Feldspar quarry, Haddam Neck, Haddam, Middlesex Co., Connecticut, USA

This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84): 41° 30' 0'' North , 72° 31' 39'' West
Latitude & Longitude (decimal): 41.5, -72.5275

A small quarry in a granite pegmatite at the very SE tip of a rocky promontory nearly completely surrounded by swamp along the Connecticut River. It is shown by a quarry symbol in Stugard (1958) but no history or name is known. It may have been operated by the Tidewater Feldspar Company, which had a mill and quarry right on the riverbank just 1000 feet downstream. Interestingly, a pile of nearly pure (#1 grade), hand-cobbed microcline is still present at the mouth of the quarry right by the water, with larger piles of less pure/graphic granite (#2 grade) next to it. Although there is an old road leading to it around the west side of the promontory, based on the location by the water the ore may have been loaded onto boats, which would have been easy to then transport to Tidewater.

Mineral List

6 valid minerals.

The above list contains all mineral locality references listed on mindat.org. 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 mindat.org 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.


Stugard, Frederick, Jr. (1958), Pegmatites of the Middletown Area, Connecticut. US Geological Survey Bulletin 1042-Q.

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2020, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: March 30, 2020 12:13:48 Page generated: February 5, 2017 17:41:31
Go to top of page