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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Microcline from
Masons Island Quarry, Stonington, New London County, Connecticut, USA


Locality type:Quarry
Classification
Species:Microcline
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Microcline data
Locality Data:Click here to view Masons Island Quarry, Stonington, New London County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:720299
Long-form Identifier:1:3:720299:5
GUID (UUID V4):0
Nearest other occurrences of Microcline
13.4km (8.3 miles) ⓘSmith Granite quarry, Westerly, Washington County, Rhode Island, USA
13.5km (8.4 miles) ⓘWhite Rock Quarry, Westerly, Washington County, Rhode Island, USA
14.4km (9.0 miles) ⓘGoos Quarry, Waterford, New London County, Connecticut, USA
14.7km (9.1 miles) ⓘRedstone Granite Quarry (Cherenzia Quarry), Westerly, Washington County, Rhode Island, USA
14.9km (9.3 miles) ⓘFlatrock Quarry (Flat Rock Quarry; Crystal Mall), Waterford, New London County, Connecticut, USA
17.7km (11.0 miles) ⓘCharter Oak Federal Credit Union construction site, Waterford, New London County, Connecticut, USA
20.4km (12.7 miles) ⓘSullivan Quarry (Armetta Quarry; Copar Quarry; Westerly Granite Co. Quarry), Bradford, Westerly, Washington County, Rhode Island, USA
20.6km (12.8 miles) ⓘCrumb Granite Quarry, Bradford, Westerly, Washington County, Rhode Island, USA
23.8km (14.8 miles) ⓘFalls of the Yantic River, Norwich, New London County, Connecticut, USA
28.6km (17.8 miles) ⓘRoute 11 road cuts, Salem, New London County, Connecticut, USA
References
Dale, T. Nelson; Gregory Herbert E. (1911) The granites of Connecticut. Bulletin 484. US Geological Survey doi:10.3133/b484
 
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