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Schorl from
Bordonaro Quarry, Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:Mostly as subhedral crystals forming layers in the metamorphic rock along the contact with the pegmatite.
Habit:elongated prismatic
Colour:Black
Abundance at site:Common
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Muscovite2
Albite2
Microcline2
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Bordonaro Quarry, Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:654628
Long-form Identifier:1:3:654628:1
GUID (UUID V4):0
Nearest other occurrences of Schorl
0.3km (0.2 miles) ⓘGotta-Wannerstrom Quarry, Portland, Middlesex County, Connecticut, USA
0.4km (0.2 miles) ⓘGotta-Walden Prospect, Portland, Middlesex County, Connecticut, USA
0.4km (0.2 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
0.8km (0.5 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
1.0km (0.6 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.4km (0.9 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
1.4km (0.9 miles) ⓘCase Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
1.5km (0.9 miles) ⓘCase Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
1.9km (1.2 miles) ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
2.0km (1.3 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, 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
 
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