Hale-Walker Beryllium Prospect And Feldspar Mine
Portland, Connecticut
41.5869°N 72.5875°W
Mine Overview
The Hale-Walker Beryllium Prospect And Feldspar Mine is near Portland, Connecticut. Historically the site has been part of the Portland Mining District. The Hale-Walker Beryllium Prospect And Feldspar Mine was closed at the time of data entry with no known plans to re-open. The ore mined is composed of tantalite, monazite and feldspar with waste material consisting primarily of tourmaline, perthite and mica. The ore body extends 54 meters (179 feet) long and 2 meters (8 feet) thick. The host rock in this area is gneiss from the Lopingian epoch 259.80 to 252.17 million years ago. 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.
Owner Name and Address
Charles Walker
- Type
- Owner
Eureka Flint & Spar Company
- Type
- Operator
Harry Walker
- Type
- Owner
Commodities
Additional textual information about a site or mine.
- Commodity Type Importance
- Beryllium Metallic Primary
- Feldspar Non-Metallic Primary
- Niobium (Columbium) Metallic Primary
- Tantalum Metallic Primary
Deposit
CAMERON SHOWS MINE MAP WITH TEXT. BROOKINS' GIVES GEOCHRON AGE DATES OF ABOUT 260 M. Y. FOR SIMILAR PEGMATITES REPORT IN USGS FILES. STUGARD'S GEOLOGIC MAP AT 1:24000, LOCATES PROSPECTS BY SYMBOL.; INFORMATION SOURCE: 1 PUB LIT.
CAMERON SHOWS MINE MAP WITH TEXT. BROOKINS' GIVES GEOCHRON AGE DATES OF ABOUT 260 M. Y. FOR SIMILAR PEGMATITES REPORT IN USGS FILES. STUGARD'S GEOLOGIC MAP AT 1:24000, LOCATES PROSPECTS BY SYMBOL.; INFORMATION SOURCE: 1 PUB LIT.
Location Info
- Middlesex , Connecticut County / State
- Continent Country State County
- North America The United States Connecticut Middlesex
Development
TOTAL$: US
Geology
DIKE IN NORTHWARD TRENDING ZONE OF NUMEROUS DIKE SWARMS MOSTLY FOUND IN THE EASTWARD ADJACENT MIDDLE ORDOVICIAN COLLINS HILL SCHIST FORMATION.
DIKE IN NORTHWARD TRENDING ZONE OF NUMEROUS DIKE SWARMS MOSTLY FOUND IN THE EASTWARD ADJACENT MIDDLE ORDOVICIAN COLLINS HILL SCHIST FORMATION.
Orebody
Characteristics of the ore body.
- Length:
- Thickness: 2.44 meters (8.01 feet)
Rocks
Geological materials at the site.
Physiography
Physiographic area where the resource is found.
- Division Province? Section
- Appalachian Highlands New England Province New England Upland Section
Reserve-resource
FIGURES LACKING BUT SIZE OF TABULAR BODY INDICATES SMALL QUANTITIES OF FELDSPAR AVAILABLE. LARGE AMOUNTS OF FELDSPAR AVAILABLE FROM NEARBY CLUSTERS OF PEGMATITE DIKES.
Nearby Deposits
Other deposits in the same region.
-
Governor Winthrops Mine
- Gold commodity Site type Mine status
- Middlesex, Connecticut
- Surface
- 1.56 miles
-
Chatham Great Hill Cobalt Nickel Arsenopyrite Mine
- Cobalt commodity Site type Mine status
- Middlesex, Connecticut
- Surface
- 2.00 miles
-
Pegmatite Quarries
- Feldspar commodity Site type Mine status
- Middlesex, Connecticut
- Surface
- 2.02 miles
-
Chatham Great Hill Mine
- Cobalt commodity Site type Mine status
- Middlesex, Connecticut
- Vein
- 2.03 miles
-
Western Quarry Feldspar Mine
- Feldspar commodity Site type Mine status
- Middlesex, Connecticut
- Surface
- 2.18 miles
-
Walden Gem Mine
- Gemstone commodity Site type Mine status
- Middlesex, Connecticut
- Surface
- 2.21 miles
-
Gotta-Walden Mica-Beryl Beryllium Prospect
- Beryllium commodity Site type Prospect status
- Middlesex, Connecticut
- Surface
- 2.26 miles
-
White Rock Pegmatite Quarry Feldspar Mine
- Feldspar commodity Site type Mine status
- Middlesex, Connecticut
- Surface
- 2.28 miles
-
Middletown Lead-Silver Mine
- Lead commodity Site type Mine status
- Middlesex, Connecticut
- Vein Quartz In Fracture Zone
- Surface
- 2.28 miles
-
Unnamed Nickel Mine
- Nickel commodity Site type Mine status
- Middlesex, Connecticut
- 2.41 miles
Nearby Places
- Portland (2.91 miles away)
- Cromwell (3.04 miles away)
- Middletown (3.68 miles away)
- East Hampton (4.45 miles away)
- Rocky Hill (6.00 miles away)
- Higganum (6.41 miles away)
- Marlborough (7.27 miles away)
- Glastonbury Center (7.89 miles away)
- Middlefield (8.03 miles away)
- Berlin (8.51 miles away)
- Haddam (8.52 miles away)
- Glastonbury (8.72 miles away)
- Durham (8.73 miles away)
- Moodus (9.18 miles away)
- Wethersfield (9.41 miles away)
- Kensington (9.93 miles away)
- Newington (10.39 miles away)
- New Britain (11.16 miles away)
- East Haddam (11.32 miles away)
- Meriden (11.83 miles away)
- Hebron (12.44 miles away)
- Hartford (13.20 miles away)
- Colchester (13.22 miles away)
- Manchester (13.49 miles away)
Nearby Mining Districts
- Portland Mining District (0 miles away)
- East Hampton Mining District (1.34 miles away)
- Middletown Mining District (2.09 miles away)
- East Haddam Mining District (6.04 miles away)
Footnotes
* 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
OWNED BY CHARLES F. AND HARRY L. WALKER. LEASED AND MINED IN 1932 BY EUREKA FLINT AND SPAR CO. FOR 3 TO 4 MONTHS FOR FELDSPAR FROM TWO OPENINGS. UPPER CUT 25 FEET LONG EAST-WEST, 9 FEET WIDE NORTH-SOUTH, AND ONE TO 10 FEET DEEP. LOWER CUT ON SAME TREND.
OWNED BY CHARLES F. AND HARRY L. WALKER. LEASED AND MINED IN 1932 BY EUREKA FLINT AND SPAR CO. FOR 3 TO 4 MONTHS FOR FELDSPAR FROM TWO OPENINGS. UPPER CUT 25 FEET LONG EAST-WEST, 9 FEET WIDE NORTH-SOUTH, AND ONE TO 10 FEET DEEP. LOWER CUT ON SAME TREND. 38 FEET LONG EAST-WEST, 10 FEET WIDE NORTH-SOUTH, AND 5 TO 18 FEET DEEP. DIKE TABULAR AND IS 180 FEET LONG AND 6 TO 8 FEET THICK. IT STRIKES N 79 DEG. WEST TO EAST-WEST AND DIPS 63 TO 74 DEG. SW. DIKE MAY EXTEND ON ADJACENT PROPERTY OWNED BY CLIFFORD HALE. ADDITIONAL FELDSPAR PROSPECTS IN DIKES LOCATED 400 FEET SOUTH, 600 FEET SOUTHWEST, AND TWO LOCATED 2400 FEET SSE (SEE STUGARD'S MAP.