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
Melvin Mountain, Grafton, Grafton County, New Hampshire, USA


Locality type:Mountain
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 Melvin Mountain, Grafton, Grafton County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:653306
Long-form Identifier:1:3:653306:9
GUID (UUID V4):0
Nearest other occurrences of Beryl
4.3km (2.7 miles) ⓘNew Haven Mica Quarry, Alexandria, Grafton County, New Hampshire, USA
4.5km (2.8 miles) ⓘPattuck Quarry, Alexandria, Grafton County, New Hampshire, USA
4.8km (3.0 miles) ⓘMud Mica Mine, Alexandria, Grafton County, New Hampshire, USA
5.0km (3.1 miles) ⓘE.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
5.1km (3.1 miles) ⓘMiddle pegmatite, E.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
5.1km (3.2 miles) ⓘBullock Quarry, E.E. Smith Mine, Alexandria, Grafton County, New Hampshire, USA
6.3km (3.9 miles) ⓘTruman Patten Quarry, Alexandria, Grafton County, New Hampshire, USA
6.6km (4.1 miles) ⓘWadhams-Tucker Quarry, Alexandria, Grafton County, New Hampshire, USA
7.8km (4.8 miles) ⓘMarston Quarry, Alexandria, Grafton County, New Hampshire, USA
7.8km (4.8 miles) ⓘRuggles Mine, Grafton, Grafton County, New Hampshire, USA
References
Penfield, S. L. (1900): On graftonite, a new mineral from Grafton, New Hampshire, and its intergrowth with triphylite. The American Journal of Science. 159, 20-32
 
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