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
Black Mountain Quarry, Rumford, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Microcline
Formula:K(AlSi3O8)
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Beryl1
Biotite1
Almandine1
Data
Mineral Data:Click here to view Microcline data
Locality Data:Click here to view Black Mountain Quarry, Rumford, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:28649
Long-form Identifier:1:3:28649:7
GUID (UUID V4):0
Nearest other occurrences of Microcline
0.8km (0.5 miles) ⓘBrown Thurston prospect, Rumford, Oxford County, Maine, USA
1.9km (1.2 miles) ⓘWhitecap Mountain localities, Rumford, Oxford County, Maine, USA
1.9km (1.2 miles) ⓘWhitehall Quarry, Rumford, Oxford County, Maine, USA
1.9km (1.2 miles) ⓘWhitehall prospects, Rumford, Oxford County, Maine, USA
2.2km (1.4 miles) ⓘBelleveau prospect, Rumford, Oxford County, Maine, USA
2.2km (1.4 miles) ⓘSwain's Notch Quartz Crystal locality, Rumford, Oxford County, Maine, USA
3.4km (2.1 miles) ⓘSouth Twin Mountain locality, Rumford, Oxford County, Maine, USA
4.1km (2.5 miles) ⓘRed Hill quarries, Rumford, Oxford County, Maine, USA
7.3km (4.6 miles) ⓘFrank Perham prospect, Rumford, Oxford County, Maine, USA
7.5km (4.6 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
References
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
 
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