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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Feldspar Group from
Belden Mine, Rumney, Grafton County, New Hampshire, USA


Locality type:Mine
Classification
Species:'Feldspar Group' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Feldspar Group data
Locality Data:Click here to view Belden Mine, Rumney, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:1017906
Long-form Identifier:1:3:1017906:2
GUID (UUID V4):0
Nearest other occurrences of Feldspar Group
0.9km (0.6 miles) ⓘWheat Mine, Rumney, Grafton County, New Hampshire, USA
1.1km (0.7 miles) ⓘAtwood Mine, Rumney, Grafton County, New Hampshire, USA
1.5km (0.9 miles) ⓘLeggett mica prospect, Rumney, Grafton County, New Hampshire, USA
2.3km (1.4 miles) ⓘKeniston mica prospect, Rumney, Grafton County, New Hampshire, USA
4.9km (3.1 miles) ⓘMcGinnis Mine (McGinnis Mica Mine; Wilcher and Pilsbury Mine), Wentworth, Grafton County, New Hampshire, USA
5.2km (3.2 miles) ⓘBrown Mine, Wentworth, Grafton County, New Hampshire, USA
7.5km (4.6 miles) ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA
7.9km (4.9 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
7.9km (4.9 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
9.2km (5.7 miles) ⓘFellows Mine, Wentworth, Grafton 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
 
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