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
Brown Thurston prospect, Rumford, Oxford County, Maine, USA


07637130017272023192968.jpg
Beryl

Brown Thurston prospect, Rumford, Oxford County, Maine, USA
07637130017272023192968.jpg
Beryl

Brown Thurston prospect, Rumford, Oxford County, Maine, USA
07637130017272023192968.jpg
Beryl

Brown Thurston prospect, Rumford, Oxford County, Maine, 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 Brown Thurston prospect, Rumford, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:33918
Long-form Identifier:1:3:33918:8
GUID (UUID V4):0
Nearest other occurrences of Beryl
0.8km (0.5 miles) ⓘBlack Mountain Quarry, Rumford, Oxford County, Maine, USA
1.8km (1.1 miles) ⓘBelleveau prospect, Rumford, Oxford County, Maine, USA
1.8km (1.1 miles) ⓘSwain's Notch Quartz Crystal locality, Rumford, Oxford County, Maine, USA
2.3km (1.4 miles) ⓘWhitecap Mountain localities, Rumford, Oxford County, Maine, USA
2.3km (1.4 miles) ⓘWhitehall Quarry, Rumford, Oxford County, Maine, USA
2.3km (1.4 miles) ⓘWhitehall prospects, Rumford, Oxford County, Maine, USA
2.9km (1.8 miles) ⓘSouth Twin Mountain locality, Rumford, Oxford County, Maine, USA
3.8km (2.4 miles) ⓘRed Hill quarries, Rumford, Oxford County, Maine, USA
7.9km (4.9 miles) ⓘFrank Perham prospect, Rumford, Oxford County, Maine, USA
8.0km (5.0 miles) ⓘBell pit, Newry, Oxford County, Maine, USA
References
Cameron, Eugene N.
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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