Bassett Arsenopyrite Mine
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.
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Additional textual information about a site or mine.
FRITTS' MAP AT 1:24000 LOCATES MINE AND PROSPECTS BY SYMBOLS.; INFORMATION SOURCE: 1 PUB LIT.
Formal or informal mining district names.
ACCESSORY MINERALS ARE TOURMALINE, ILMENITE, CHLORITE, RUTILE, APATITE AND ZIRCON. OLDER METAMORPHOSED GRANITIC BELT IS PROSPECT GNEISS FORMATION.
Characteristics of the ore body.
Geological materials at the site.
Physiographic area where the resource is found.
Controls on emplacement of ore such as faults or other structural features.
INFORMATION LACKING. PROBABLY ONLY SMALL AMOUNT OF HIGH GRADE ARSENOPYRITE ORE AVAILABLE; STUDY NEEDED; SITE IN OSBORNDALE STATE PARK. PROSPECTED FOR SILVER BEFORE 1837.
Other deposits in the same region.
Seymour Arsenic And Nickel Mine
Unnamed Silver Mine
Booths Lower Level Bismuth And Sulfide Mine
Booths Upper Level Bismuth And Sulfide Prospect
Unnamed Copper Occurrence
Stevenson Bowers Hill Copper Mine
Monroe Lanes Mine
Unnamed Copper Prospect
Lanes Bismuth And Sulfide 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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Understanding Claim Ownership
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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.