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


Locality type:Prospect
Classification
Species:Quartz var: Smoky Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Smoky Quartz data
Locality Data:Click here to view Eight-Ball Mica prospect, Rumney, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:38313
Long-form Identifier:1:3:38313:4
GUID (UUID V4):0
Nearest other occurrences of Smoky Quartz
2.0km (1.2 miles) ⓘWheat Mine, Rumney, Grafton County, New Hampshire, USA
9.5km (5.9 miles) ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA
10.7km (6.6 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
11.5km (7.1 miles) ⓘRice Quarry, Groton, Grafton County, New Hampshire, USA
19.8km (12.3 miles) ⓘMorgan Mica prospect, Alexandria, Grafton County, New Hampshire, USA
20.8km (12.9 miles) ⓘMarston Quarry, Alexandria, Grafton County, New Hampshire, USA
23.1km (14.4 miles) ⓘWadhams-Tucker Quarry, Alexandria, Grafton County, New Hampshire, USA
24.8km (15.4 miles) ⓘNew Haven Mica Quarry, Alexandria, Grafton County, New Hampshire, USA
25.1km (15.6 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
25.2km (15.6 miles) ⓘPattuck Quarry, Alexandria, 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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