Bassett Arsenopyrite Mine
Derby, Connecticut
41.3414°N 73.0984°W
Mine Overview
The Bassett Arsenopyrite Mine is in Derby, Connecticut. Historically the site has been part of the Derby Mining District. The Bassett Arsenopyrite Mine is a surface mining operation. The ore mined is composed of pyrite, galena and sphalerite with waste material consisting primarily of garnet, biotite and muscovite. Associated rock in this area is diabase from the Upper Triassic epoch 237.00 to 201.30 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.
Bassett Arsenopyrite Mine In Derby, Connecticut
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Commodities
Additional textual information about a site or mine.
- Commodity Type Importance
- Arsenic Metallic Primary
- Iron Metallic Secondary
- Quartz Non-Metallic Secondary
- Sulfur Non-Metallic Secondary
- Lead Metallic Tertiary
- Zinc Metallic Tertiary
Deposit
FRITTS' MAP AT 1:24000 LOCATES MINE AND PROSPECTS BY SYMBOLS.; INFORMATION SOURCE: 1 PUB LIT.
Location Info
- New Haven , Connecticut County / State
- Continent Country State County
- North America The United States Connecticut New Haven
Development
TOTAL$: US
Geology
ACCESSORY MINERALS ARE TOURMALINE, ILMENITE, CHLORITE, RUTILE, APATITE AND ZIRCON. OLDER METAMORPHOSED GRANITIC BELT IS PROSPECT GNEISS FORMATION.
Orebody
Characteristics of the ore body.
- Strike: n. 20 deg. east
- Dip: southeast
Rocks
Geological materials at the site.
- Class? 1st Order Name? 2nd Order Name? 3rd Order Name? 4th Order Name? Most Specific Name? Begin Time End Time Description?
- Associated Rock Plutonic Rock Mafic Intrusive Rock Diorite - Diabase Upper Triassic Upper Triassic -
- Associated Rock Plutonic Rock Pegmatite - - Pegmatite - - -
- Host Rock Metamorphic Rock Schist - - Schist - - -
- Mineralization - - - - - Upper Ordovician Upper Ordovician -
Physiography
Physiographic area where the resource is found.
- Division Province? Section
- Appalachian Highlands New England Province New England Upland Section
Ore Control
Controls on emplacement of ore such as faults or other structural features.
- Text?
- Metamorphosed Sedimentary Beds
Reserve-resource
INFORMATION LACKING. PROBABLY ONLY SMALL AMOUNT OF HIGH GRADE ARSENOPYRITE ORE AVAILABLE; STUDY NEEDED; SITE IN OSBORNDALE STATE PARK. PROSPECTED FOR SILVER BEFORE 1837.
Nearby Deposits
Other deposits in the same region.
-
Seymour Arsenic And Nickel Mine
- Arsenic commodity Site type Mine status
- New Haven, Connecticut
- 2.57 miles
-
Unnamed Silver Mine
- Silver commodity Site type Mine status
- New Haven, Connecticut
- Surface
- 3.85 miles
-
Booths Lower Level Bismuth And Sulfide Mine
- Bismuth commodity Site type Mine status
- Fairfield, Connecticut
- Massive Quartz In Silicif
- Surface
- 4.44 miles
-
Pegmatite Quarries
- Beryllium commodity Site type Mine status
- Fairfield, Connecticut
- Surface
- 4.65 miles
-
Booths Upper Level Bismuth And Sulfide Prospect
- Bismuth commodity Site type Occurrence status
- Fairfield, Connecticut
- Massive Quartz In Silicif
- 4.77 miles
-
Unnamed Copper Occurrence
- Copper commodity Site type Occurrence status
- New Haven, Connecticut
- Disseminations In Metamor
- 5.08 miles
-
Stevenson Bowers Hill Copper Mine
- Copper commodity Site type Mine status
- New Haven, Connecticut
- Metamorphosed Volcanic An
- Underground
- 5.09 miles
-
Monroe Lanes Mine
- Bismuth commodity Site type Occurrence status
- Fairfield, Connecticut
- Quartz Veins
- 5.53 miles
-
Unnamed Copper Prospect
- Copper commodity Site type Occurrence status
- New Haven, Connecticut
- Disseminations In Metamor
- 6.18 miles
-
Lanes Bismuth And Sulfide Mine
- Bismuth commodity Site type Mine status
- Fairfield, Connecticut
- Massive Quartz Lense
- Surface
- 6.27 miles
Nearby Places
- Ansonia (1.05 miles away)
- Derby (1.47 miles away)
- Shelton (1.69 miles away)
- Seymour (3.94 miles away)
- Woodbridge (4.72 miles away)
- Monroe (5.67 miles away)
- Orange (5.71 miles away)
- Oxford (6.40 miles away)
- Beacon Falls (7.20 miles away)
- Bethany (7.61 miles away)
- Milford (8.46 miles away)
- Trumbull (8.60 miles away)
- New Haven (9.10 miles away)
- West Haven (9.21 miles away)
- Woodmont (9.55 miles away)
- Naugatuck (10.23 miles away)
- Stratford (10.94 miles away)
- Hamden (11.10 miles away)
- Southbury (11.30 miles away)
- Newtown (11.71 miles away)
- Easton (11.99 miles away)
- Prospect (12.68 miles away)
- East Haven (12.72 miles away)
- North Haven (12.84 miles away)
Nearby Mining Districts
- Derby Mining District (0 miles away)
- Seymour Mining District (1.43 miles away)
- Monroe Mining District (3.24 miles away)
- Oxford Mining District (3.58 miles away)
- Beacon Falls Mining District (4.29 miles away)
- Woodbridge Mining District (5.15 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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Understanding Location Data
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Understanding Townships
A “township” can refer to two different things. Both are part of the PLSS measurement system but have different uses.
Notes
INFORMATION LACKING. MAINLY MEDIUM TO FINE GRAINED SILVERY GRAY TO MEDIUM GRAY MUSCOVITE SCHIST AND SLABBY MEDIUM LIGHT GRAY TO DARK GRAY QUARTZ RICH PARAGNEISS, IMPURE MARBLE AND CALCIC SILICATE ROCKS. SCHISTOSITY STRIKES N. 20 DEG. EAST; DIP SE. ADDITIONAL PROSPECTS 300 FEET ESE. IN SIMILAR SCHIST, AND 400 FEET TO NW. IN OLDER METAMORPHOSED GRANITE BELT ADJACENT TO TRIASSIC DIABASE DIKE. ORE OCCURS IN BUNCHES IN QUARTZY GNEISS ADJACENT TO TRIASSIC DIABASE. NUMBER OF VERTICAL EXCAVATIONS AND ONE HORIZONTAL ADIT MADE.