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
Britton Quarry, Alstead, Cheshire County, New Hampshire, 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 Britton Quarry, Alstead, Cheshire County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:50552
Long-form Identifier:1:3:50552:3
GUID (UUID V4):0
Nearest other occurrences of Microcline
1.0km (0.6 miles) ⓘSmith Hill Quarry, Alstead, Cheshire County, New Hampshire, USA
1.4km (0.9 miles) ⓘBig Mine, Alstead, Cheshire County, New Hampshire, USA
2.5km (1.6 miles) ⓘBurroughs beryl prospect, Alstead, Cheshire County, New Hampshire, USA
2.6km (1.6 miles) ⓘBlister Mine, Alstead, Cheshire County, New Hampshire, USA
2.7km (1.7 miles) ⓘIsland Mine, Alstead, Cheshire County, New Hampshire, USA
2.8km (1.8 miles) ⓘFrench Mine, Alstead, Cheshire County, New Hampshire, USA
3.1km (1.9 miles) ⓘBeauregard Mine, Alstead, Cheshire County, New Hampshire, USA
3.7km (2.3 miles) ⓘNichols Quarry, Gilsum, Cheshire County, New Hampshire, USA
3.7km (2.3 miles) ⓘTurner Mine, Marlow, Cheshire County, New Hampshire, USA
5.0km (3.1 miles) ⓘKirk No. 2 Quarry, Gilsum, Cheshire County, New Hampshire, USA
References
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
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
 
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