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While externally similar shapes, these two minerals are very different inside.
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Schorl from
Thomas Mine (Balsam Gap kyanite location; Parkway kyanite location), Buncombe County, North Carolina, USA


Locality type:Mine
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:Specimens of tourmaline are 68% Dravite and 32% Schorl
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Thomas Mine (Balsam Gap kyanite location; Parkway kyanite location), Buncombe County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:44654
Long-form Identifier:1:3:44654:9
GUID (UUID V4):0
Nearest other occurrences of Schorl
15.5km (9.6 miles) ⓘBalsam Mine, Yancey County, North Carolina, USA
17.0km (10.6 miles) ⓘRay Mica Mine, Hurricane Mountain, Burnsville, Yancey County, North Carolina, USA
24.9km (15.5 miles) ⓘCrabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
29.1km (18.1 miles) ⓘMcHone Mine pegmatite, Mitchell County, North Carolina, USA
50.6km (31.4 miles) ⓘJ.C. Mills Mine (Mill's Mine; Mills's Mine), Brindletown, Burke County, North Carolina, USA
62.2km (38.6 miles) ⓘMorganton Quarry (Vulcan Materials Co. Quarry), Morganton, Burke County, North Carolina, USA
94.1km (58.5 miles) ⓘMartin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA
95.0km (59.0 miles) ⓘJefferson-Boone Pegmatite, Ashe County, North Carolina, USA
References
Wood, Keith Yates (1996)Petrogenesis And Geochemistry Of Kyanite-Bearing Pegmatites in The Buncombe Pegmatite District, North Carolina : Virginia Polytechnic Institute and State University
 
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