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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Schorl from
Rice Quarry, Groton, Grafton County, New Hampshire, USA


08171570017272014024818.jpg
Schorl, etc.

Rice Quarry, Groton, Grafton County, New Hampshire, USA
04567500017272014347620.jpg
Schorl

Rice Quarry, Groton, Grafton County, New Hampshire, USA
09063550017272014357705.jpg
Schorl, etc.

Rice Quarry, Groton, Grafton County, New Hampshire, USA
00805890017272014373860.jpg
Schorl

Rice Quarry, Groton, Grafton County, New Hampshire, USA
08171570017272014024818.jpg
Schorl, etc.

Rice Quarry, Groton, Grafton County, New Hampshire, USA
04567500017272014347620.jpg
Schorl

Rice Quarry, Groton, Grafton County, New Hampshire, USA
09063550017272014357705.jpg
Schorl, etc.

Rice Quarry, Groton, Grafton County, New Hampshire, USA
00805890017272014373860.jpg
Schorl

Rice Quarry, Groton, Grafton County, New Hampshire, USA
08171570017272014024818.jpg
Schorl, etc.

Rice Quarry, Groton, Grafton County, New Hampshire, USA
04567500017272014347620.jpg
Schorl

Rice Quarry, Groton, Grafton County, New Hampshire, USA
09063550017272014357705.jpg
Schorl, etc.

Rice Quarry, Groton, Grafton County, New Hampshire, USA
00805890017272014373860.jpg
Schorl

Rice Quarry, Groton, Grafton County, New Hampshire, USA
Locality type:Mine
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Quartz4
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Rice Quarry, Groton, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (9 photos)
Data Identifiers
Mindat Occurrence Record ID:38284
Long-form Identifier:1:3:38284:3
GUID (UUID V4):0
Nearest other occurrences of Schorl
0.8km (0.5 miles) ⓘPalermo No. 2 Mine, Groton, Grafton County, New Hampshire, USA
0.9km (0.6 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
2.2km (1.4 miles) ⓘCharles Davis Mine, Groton, Grafton County, New Hampshire, USA
6.9km (4.3 miles) ⓘNo. 1 pit, Keyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
6.9km (4.3 miles) ⓘKeyes Mica Quarries, Orange, Grafton County, New Hampshire, USA
7.7km (4.8 miles) ⓘKeniston mica prospect, Rumney, Grafton County, New Hampshire, USA
7.9km (4.9 miles) ⓘAtwood Mine, Rumney, Grafton County, New Hampshire, USA
8.7km (5.4 miles) ⓘLeggett mica prospect, Rumney, Grafton County, New Hampshire, USA
8.7km (5.4 miles) ⓘBelden Mine, Rumney, Grafton County, New Hampshire, USA
9.9km (6.2 miles) ⓘMcGinnis Mine (McGinnis Mica Mine; Wilcher and Pilsbury 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
Smith, Arthur E. (2005) New Hampshire mineral locality index. Rocks & Minerals, 80 (4) 242-261 doi:10.3200/rmin.80.4.242-261
Dallaire, Donald (2022) Beryllium Minerals in New Hampshire. Rocks & Minerals, 97 (3) 208-235 doi:10.1080/00357529.2022.2028096
 
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