Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Bismuthinite from
Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Bismuthinite
Formula:Bi2S3
Comments:Small masses with pyrite...incrusted with white sillenite(?).
Quality for species:Poor for species, only of interest for locality collectors. (#)
Abundance at site:Very Rare
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Bismuthinite data
Locality Data:Click here to view Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:830451
Long-form Identifier:1:3:830451:3
GUID (UUID V4):0
Nearest other occurrences of Bismuthinite
2.5km (1.5 miles) ⓘWorth and Selden Quarries (Victoria Quarry), East Hampton, Middlesex County, Connecticut, USA
2.8km (1.7 miles) ⓘChrysoberyl locality, Haddam, Middlesex County, Connecticut, USA
4.2km (2.6 miles) ⓘTimms Hill (Tim's Hill; Iolite Hill), Haddam, Middlesex County, Connecticut, USA
5.1km (3.1 miles) ⓘSlocum prospect, East Hampton, Middlesex County, Connecticut, USA
5.8km (3.6 miles) ⓘState Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA
6.2km (3.9 miles) ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA
6.5km (4.0 miles) ⓘLong Hill prospects (Turkey Hill prospects), Haddam, Middlesex County, Connecticut, USA
8.2km (5.1 miles) ⓘWhite Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
11.0km (6.8 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
11.3km (7.0 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
References
Schooner, Richard. (circa 1980s), Untitled manuscript on central Connecticut mineralogy.
 
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