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
Consolidated Feldspar Quarries, Georgetown, Sagadahoc County, Maine, USA


Locality type:Quarry
Classification
Species:Microcline
Formula:K(AlSi3O8)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz13
- var Smoky Quartz5
Graphic granite3
Uraninite2
Schorl2
Zircon2
Pyrite1
Muscovite1
Metatorbernite1
Data
Mineral Data:Click here to view Microcline data
Locality Data:Click here to view Consolidated Feldspar Quarries, Georgetown, Sagadahoc County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:32946
Long-form Identifier:1:3:32946:4
GUID (UUID V4):0
Nearest other occurrences of Microcline
0.2km (0.1 miles) ⓘHoward-Collins Quarry, Georgetown, Sagadahoc County, Maine, USA
0.8km (0.5 miles) ⓘTodd's Bay Quarry, Georgetown, Sagadahoc County, Maine, USA
0.8km (0.5 miles) ⓘCummings Quarry, Georgetown, Sagadahoc County, Maine, USA
1.9km (1.2 miles) ⓘPerkins Island beryl locality, Georgetown, Sagadahoc County, Maine, USA
3.0km (1.9 miles) ⓘParker Head, Phippsburg, Sagadahoc County, Maine, USA
3.4km (2.1 miles) ⓘE. P. Thomas Quarry, Phippsburg, Sagadahoc County, Maine, USA
4.3km (2.7 miles) ⓘParker Head Quarry, Parker Head, Phippsburg, Sagadahoc County, Maine, USA
5.0km (3.1 miles) ⓘRobbins Quarry, Phippsburg, Sagadahoc County, Maine, USA
6.9km (4.3 miles) ⓘMcKay Farm prospect, Phippsburg, Sagadahoc County, Maine, USA
7.1km (4.4 miles) ⓘPerry Quarry, Phippsburg, Sagadahoc County, Maine, USA
References
Cameron, Eugene N.
Bastin, E. S. (1911) Geology of the pegmatites and associated rocks of Maine, including feldspar, quartz, mica, and gem deposits. Bulletin 445. US Geological Survey doi:10.3133/b445
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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