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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Beryl from
Eight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA


Locality type:Prospect
Classification
Species:Beryl
Formula:Be3Al2(Si6O18)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Beryl data
Locality Data:Click here to view Eight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:38314
Long-form Identifier:1:3:38314:3
GUID (UUID V4):0
Nearest other occurrences of Beryl
2.0km (1.2 miles) ⓘWheat Mine, Rumney, Grafton County, New Hampshire, USA
3.6km (2.2 miles) ⓘLeggett mica prospect, Rumney, Grafton County, New Hampshire, USA
3.8km (2.4 miles) ⓘAtwood Mine, Rumney, Grafton County, New Hampshire, USA
4.2km (2.6 miles) ⓘKeniston mica prospect, Rumney, Grafton County, New Hampshire, USA
5.0km (3.1 miles) ⓘNew Gove prospect, Wentworth, Grafton County, New Hampshire, USA
6.2km (3.9 miles) ⓘMcGinnis Mine (McGinnis Mica Mine; Wilcher and Pilsbury Mine), Wentworth, Grafton County, New Hampshire, USA
7.7km (4.8 miles) ⓘFellows Mine, Wentworth, Grafton County, New Hampshire, USA
8.8km (5.5 miles) ⓘClement Mine, Warren, Grafton County, New Hampshire, USA
9.3km (5.8 miles) ⓘCharles Davis Mine, Groton, Grafton County, New Hampshire, USA
9.5km (5.9 miles) ⓘFletcher Mine, Groton, 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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