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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Heliodor from
Fisher Quarry, Topsham, Sagadahoc County, Maine, USA


Locality type:Quarry
Classification
Species:Beryl var: Heliodor
Formula:Be3Al2(Si6O18)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Heliodor data
Locality Data:Click here to view Fisher Quarry, Topsham, Sagadahoc County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:36217
Long-form Identifier:1:3:36217:7
GUID (UUID V4):0
Nearest other occurrences of Heliodor
0.7km (0.4 miles) ⓘWilliam Willes #1 Quarry, Topsham, Sagadahoc County, Maine, USA
0.8km (0.5 miles) ⓘSquare Pit (Consolidated #4 Quarry), Topsham, Sagadahoc County, Maine, USA
9.0km (5.6 miles) ⓘCoombs Quarries, Bowdoin, Sagadahoc County, Maine, USA
10.2km (6.3 miles) ⓘTrott Cove Quarry, Woolwich, Sagadahoc County, Maine, USA
11.1km (6.9 miles) ⓘLaChance Quarry, Brunswick, Cumberland County, Maine, USA
23.6km (14.7 miles) ⓘParker Head Quarry, Parker Head, Phippsburg, Sagadahoc County, Maine, USA
24.4km (15.2 miles) ⓘE. P. Thomas Quarry, Phippsburg, Sagadahoc County, Maine, USA
31.7km (19.7 miles) ⓘKeith Quarry (Towne Quarry), West Mount Apatite Mining District, Auburn, Androscoggin County, Maine, USA
42.3km (26.3 miles) ⓘHeath Quarry, Casco, Cumberland County, Maine, USA
46.1km (28.6 miles) ⓘHibbs Quarry, Mount Rubellite, Hebron, Oxford County, Maine, USA
References
Clara Brennan, Samuel M. Cameron, and Mona-Liza C. Sirbescu (2016) Crystallization of the Fisher Quarry Pegmatite, Sagadahoc Co., Maine: Preliminary Insights from Fluid Inclusions. in Second Eugene E. Foord Pegmatite Symposium July 15-19, 2016 Colorado School of Mines campus, Golden, Colorado
 
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