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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Bismutite from
Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Bismutite
Formula:(BiO)2CO3
Comments:Early references such as Schairer (1931) only attribute the mineral to "Portland" and this could easily mean the older Pelton Quarry where it is known. Schooner (1958) says: "The Wesleyan University collection...contains a solid two inch mass of the mineral from Portland. The exact source may have been the Strickland Quarry, though it is not specified on the label". Nope, that piece is from the Pelton Quarry as described in Wells, H. L. (1887), Bismutosphaerite from Willimantic and Portland. American Journal of Science: s. 3, 34: 271-4.
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Bismutite data
Locality Data:Click here to view Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:96187
Long-form Identifier:1:3:96187:1
GUID (UUID V4):0
Nearest other occurrences of Bismutite
1.6km (1.0 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
3.8km (2.3 miles) ⓘCase Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
3.8km (2.3 miles) ⓘCase Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
3.8km (2.3 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
3.8km (2.4 miles) ⓘCase Prospect No. 4, Case Quarries, Portland, Middlesex County, Connecticut, USA
3.9km (2.4 miles) ⓘCase Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
4.3km (2.7 miles) ⓘNathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
5.4km (3.3 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
5.7km (3.6 miles) ⓘNike prospect, Portland, Middlesex County, Connecticut, USA
6.0km (3.7 miles) ⓘHusband Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
References
Ralph Lieser of Pappy’s Beryl Shop, East Hampton
and Howard Pate of Fluorescent House, Branford, Connecticut.
Schairer, John F. (1931): Minerals of Connecticut. State Geological and Natural History Survey Bulletin 51.
Schooner, Richard. (1958): The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner
 
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