National Minerals Information Center

The Mineral Industry of Connecticut

Statistics and information on the nonfuel mineral commodities produced in Connecticut

Minerals Yearbook Vol. II - Domestic

Minerals Yearbook Vol. II - Domestic

2016-2017 data for Connecticut are summarized in the table on this web page. The 2015 chapter data tables (XLS) and 2014 chapter containing text and data tables in PDF and XLS formats are available, with other years, through the links below.

Sources of information

Connecticut produces crushed stone (mainly traprock and limestone), and construction sand and gravel. Clay is mined for brickmaking. Intermittently small dimension stone (granite and sandstone)  quarries are active.

Statistical Summary

Aggregates Data by State, Type, and End Use

Mineral Commodity Summaries

Mineral Industry Surveys

Minerals Yearbook Volume I -- Metals and Minerals

Mineral Yearbook Volume II - Connecticut chapters

The following data table gives nonfuel mineral commodity production data for Connecticut extracted from Table 5 in the 2017 Minerals Yearbook Statistical Summary.

Nonfuel Mineral Commodity Production in Connecticut1,2,3
Mineral Commodity Units 2016 Quantity 2016 Value (thousands) 2017 Quantity 2017 Value (thousands)
Clay, common   (6) (7) (6) (7)
Gemstones, naturale   NA 13 NA 8
Sand and gravel, construction Thousand metric tons (1000 t) 5,330 51,800 4,810 46,900
Stone, crushed 1000 t 9,480r 146,000r 9,640 150,000
Stone, dimension   (6) (7) (6) (7)
Total (partial)   XX 198,000r XX 199,000

eEstimated. rRevised. NA Not available. XX Not applicable.

1Includes data from the commodity chapters published in the Minerals Yearbook as they were completed and released through December 2020.

2Production as measured by mine shipments, sales, or marketable production (including consumption by producers). Mine output measured as sold or used by producers is primarily shown in the tables, because values can be assigned. Where sold or used data are not available, actual mine output is used as the production measurement and value is estimated average price of the mineral commodity for that year. Data are reported in gross weight unless otherwise specified.

3Data are rounded to no more than three significant digits; may not add to totals shown.

6Withheld to avoid disclosing company proprietary data.

7Withheld to avoid disclosing company proprietary data; value included in "Undistributed" in the U.S. total value.

Minerals Yearbook Volume II Connecticut chapters:

Subscribe to receive an email notification when a publication is added to this page.

Links 

Contacts

Robert M Callaghan

State Mineral Specialist
National Minerals Information Center
Phone: 703-648-7709

Madan M Singh

State Mineral Specialist
National Minerals Information Center
Phone: 703-648-4916