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
Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, 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 Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:29696
Long-form Identifier:1:3:29696:2
GUID (UUID V4):0
Nearest other occurrences of Microcline
1.2km (0.8 miles) ⓘRailroad Quarry, Topsham, Sagadahoc County, Maine, USA
1.9km (1.2 miles) ⓘMount Ararat Quarries, Topsham, Sagadahoc County, Maine, USA
2.1km (1.3 miles) ⓘMetcalf Quarry, Mount Ararat Quarries, Topsham, Sagadahoc County, Maine, USA
2.4km (1.5 miles) ⓘTwin Pits Quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
2.4km (1.5 miles) ⓘSwamp #1 Quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
2.4km (1.5 miles) ⓘSwamp #2 quarry, Cathance River Nature Preserve, Topsham, Sagadahoc County, Maine, USA
2.5km (1.6 miles) ⓘLeavitt Prospect, Highland Green, Topsham, Sagadahoc County, Maine, USA
2.5km (1.6 miles) ⓘConsolidated #2 Quarry (Purington Quarry), Highland Green, Topsham, Sagadahoc County, Maine, USA
2.6km (1.6 miles) ⓘWilliam Willes #3 Quarry, Highland Green, Topsham, Sagadahoc County, Maine, USA
2.6km (1.6 miles) ⓘConsolidated #1 Quarry, Highland Green, Topsham, Sagadahoc County, Maine, USA
References
Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey
 
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