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Acanthite from
Biermann Quarries (Bethel quarries; Codfish Hill Quarry), Bethel, Fairfield County, Connecticut, USA


Locality type:Quarry
Classification
Species:Acanthite
Formula:Ag2S
Formation:Secondary
Comments:Microscopic black masses with post-collecting crystal overgrowths.
Habit:massive
Colour:black
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very Rare
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Acanthite data
Locality Data:Click here to view Biermann Quarries (Bethel quarries; Codfish Hill Quarry), Bethel, Fairfield County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:1767074
Long-form Identifier:1:3:1767074:6
GUID (UUID V4):0
Nearest other occurrences of Acanthite
15.9km (9.9 miles) ⓘState Route 25 road cuts, Trumbull, Fairfield County, Connecticut, USA
65.6km (40.8 miles) ⓘMiddletown lead mines (Middletown Mine), Middletown, Middlesex County, Connecticut, USA
References
Wilken, Bob. (2025) "Revisiting" the Biermann Quarry, Bethel, CT. Micromounters of New England Newsletter: 440: 2-6.
 
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