Middletown Lead-Silver Mine
Middletown, Connecticut
41.5591°N 72.6116°W
41.5591°N 72.6116°W
The Middletown Lead-Silver Mine is in Middletown, Connecticut. Historically the site has been part of the Middletown Mining District. The site was first discovered before 1776. The Middletown Lead-Silver Mine was closed at the time of data entry with no known plans to re-open. Past operations took place from before 1776, 1852 to 1854. Production size when active was considered to be small. The ore mined is composed of barite, anglesite and hydrozincite. The New England Upland Section of the Appalachian Highlands characterize the geomorphology of the surrounding area.
Site identification and general characteristics. Learn about USGS mines.
Additional textual information about a site or mine.
STUGARD GEOLOGIC MAP AT 1:24000; MINE LOCATED BY SYMBOL; INFORMATION SOURCE: 1 PUB LIT.
STUGARD GEOLOGIC MAP AT 1:24000; MINE LOCATED BY SYMBOL; INFORMATION SOURCE: 1 PUB LIT.
ALSO LISTED UNDER GSC ID #W100458 (JULY 95).
TOTAL$: US
COLLINS HILL SCHIST FORMATION MAY BE MORE EQUIVALENT TO ORDOVICIAN BRIMFIELD SCHIST FORMATION THAN TO SILURO-DEVONIAN BOLTON SCHIST FORMATION. VEIN LOCATED IN BRECCIA ZONE OF THE TRIASSIC EASTERN CONNECTICUT VALLEY BORDER FAULT.
COLLINS HILL SCHIST FORMATION MAY BE MORE EQUIVALENT TO ORDOVICIAN BRIMFIELD SCHIST FORMATION THAN TO SILURO-DEVONIAN BOLTON SCHIST FORMATION. VEIN LOCATED IN BRECCIA ZONE OF THE TRIASSIC EASTERN CONNECTICUT VALLEY BORDER FAULT.
Physiographic area where the resource is found.
FIGURES LACKING; PROBABLY ONLY SMALL AMOUNTS OF SULFIDES AVAILABLE FROM THIN MINERALIZED ZONE.
Other deposits in the same region.
Western Quarry Feldspar Mine
Middleton Lead Mine
White Rock Pegmatite Quarry Feldspar Mine
Hale-Walker Beryllium Prospect And Feldspar Mine
Pegmatite Quarries
Pegmatite Quarries
Governor Winthrops Mine
Pegmatite Quarries
Unnamed Nickel Mine
Chatham Great Hill Mine
* Mine bounds on map indicate the general area that a mine occupies. For an detailed map, refer to the overseeing BLM field office.
** The mine central point is based on an average of the mine's bounding box(es) and does not necessarily fall on the claim itself.
1 World-class significance is determined by total endowment of the contained commodity. This includes all past production and remaining reserves. Each commodity is considered separately and commodities cannot be combined to arrive at a significant size. The tonnage thresholds are from the mine model grade-tonnage studies. As of June 2008, many entries were classified as significant under less strict rules.
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Notes
PROSPECTED BEFORE 1776, BETWEEN 1852 TO 1854 SHAFT 120 FEET DEEP ON VEIN QUARTZ 1. 5 TO 3 FEET THICK. VEIN DIPS 35 TO 40 DEG. WEST; TRENDS NORTH AND OUTCROPS ON CONNECTICUT RIVER BANK AS QUARTZ VEIN BEARING SULFIDES 10 TO 20 INCHES THICK.
PROSPECTED BEFORE 1776, BETWEEN 1852 TO 1854 SHAFT 120 FEET DEEP ON VEIN QUARTZ 1. 5 TO 3 FEET THICK. VEIN DIPS 35 TO 40 DEG. WEST; TRENDS NORTH AND OUTCROPS ON CONNECTICUT RIVER BANK AS QUARTZ VEIN BEARING SULFIDES 10 TO 20 INCHES THICK.