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
Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, USA


03830600017370218291330.jpg
Schorl

Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, USA
03830600017370218291330.jpg
Schorl

Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, USA
08325890017370218308060.jpg
Schorl

Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, USA
Locality type:Quarry
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Porcupine Hill Quarry, Topsham, Sagadahoc County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:29699
Long-form Identifier:1:3:29699:9
GUID (UUID V4):0
Nearest other occurrences of Schorl
1.9km (1.2 miles) ⓘMount Ararat Quarries, Topsham, Sagadahoc County, Maine, USA
2.6km (1.6 miles) ⓘConsolidated #1 Quarry, Highland Green, Topsham, Sagadahoc County, Maine, USA
2.7km (1.6 miles) ⓘRussell Brothers Quarry, Topsham, Sagadahoc County, Maine, USA
3.7km (2.3 miles) ⓘSquare Pit (Consolidated #4 Quarry), Topsham, Sagadahoc County, Maine, USA
7.7km (4.8 miles) ⓘAdderton Prospect, Bowdoinham, Sagadahoc County, Maine, USA
8.2km (5.1 miles) ⓘLaChance Quarry, Brunswick, Cumberland County, Maine, USA
11.0km (6.8 miles) ⓘCoombs Quarries, Bowdoin, Sagadahoc County, Maine, USA
12.6km (7.8 miles) ⓘDavis Mica Quarry, West Bath, Sagadahoc County, Maine, USA
13.2km (8.2 miles) ⓘTrott Cove Quarry, Woolwich, Sagadahoc County, Maine, USA
14.6km (9.1 miles) ⓘPorter Landing prospects, Freeport, Cumberland County, Maine, USA
References
Thompson, Woodrow B., Joyner, Ronald L., Woodman, Raymond G., King, Vandall T. (1998) Bulletin (41), A Collector's Guide to Maine Mineral Localities (3rd ed.) Maine Geological Survey
 
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