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
Brown Thurston prospect, Rumford, Oxford County, Maine, USA


Locality type:Prospect
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 Brown Thurston prospect, Rumford, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:33924
Long-form Identifier:1:3:33924:9
GUID (UUID V4):0
Nearest other occurrences of Microcline
0.8km (0.5 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
1.8km (1.1 miles) ⓘBelleveau prospect, Rumford, Oxford County, Maine, USA
1.8km (1.1 miles) ⓘSwain's Notch Quartz Crystal locality, Rumford, Oxford County, Maine, USA
2.3km (1.4 miles) ⓘWhitecap Mountain localities, Rumford, Oxford County, Maine, USA
2.3km (1.4 miles) ⓘWhitehall Quarry, Rumford, Oxford County, Maine, USA
2.3km (1.4 miles) ⓘWhitehall prospects, Rumford, Oxford County, Maine, USA
2.9km (1.8 miles) ⓘSouth Twin Mountain locality, Rumford, Oxford County, Maine, USA
3.8km (2.4 miles) ⓘRed Hill quarries, Rumford, Oxford County, Maine, USA
7.9km (4.9 miles) ⓘFrank Perham prospect, Rumford, Oxford County, Maine, USA
8.0km (5.0 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
References
Cameron, Eugene N.
Cameron, Eugene N., Larrabee, David M., McNair, Andrew H., Page, James J., Stewart, Glen W., Shainin, Vincent E. (1954) Pegmatite Investigations, 1942-45, in New England. Geological Survey Professional Paper 255. US Geological Survey doi:10.3133/pp255
 
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