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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
Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA


05798250017272724507327.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
01024890017272015689952.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
07277060017272015698281.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
02064460017272026194211.jpg
Schorl, etc.

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
05007650017362410036351.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
01024890017272015689952.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
07277060017272015698281.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
02064460017272026194211.jpg
Schorl, etc.

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
08627900017272724512831.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
01024890017272015689952.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
07277060017272015698281.jpg
Schorl

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
02064460017272026194211.jpg
Schorl, etc.

Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
Locality type:Mine
Classification
Species:Schorl
Formula:NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Comments:Schorl is intermediate in chemistry. Falls in the Dravite-Schorl series.
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Beryl13
- var Emerald11
Garnet Group5
Biotite5
Quartz3
Albite3
- var Oligoclase2
Mica Group1
Data
Mineral Data:Click here to view Schorl data
Locality Data:Click here to view Crabtree Mine, Spruce Pine, Mitchell County, North Carolina, USA
Photo GalleryView Gallery (6 photos)
Data Identifiers
Mindat Occurrence Record ID:45697
Long-form Identifier:1:3:45697:1
GUID (UUID V4):0
Nearest other occurrences of Schorl
4.3km (2.6 miles) ⓘMcHone Mine pegmatite, Mitchell County, North Carolina, USA
13.5km (8.4 miles) ⓘBalsam Mine, Yancey County, North Carolina, USA
14.4km (8.9 miles) ⓘRay Mica Mine, Hurricane Mountain, Burnsville, Yancey County, North Carolina, USA
24.9km (15.5 miles) ⓘThomas Mine (Balsam Gap kyanite location; Parkway kyanite location), Buncombe County, North Carolina, USA
40.1km (24.9 miles) ⓘJ.C. Mills Mine (Mill's Mine; Mills's Mine), Brindletown, Burke County, North Carolina, USA
43.9km (27.3 miles) ⓘMorganton Quarry (Vulcan Materials Co. Quarry), Morganton, Burke County, North Carolina, USA
70.5km (43.8 miles) ⓘJefferson-Boone Pegmatite, Ashe County, North Carolina, USA
76.0km (47.2 miles) ⓘMartin Marietta Quarry (Hickory Quarry), Hickory, Catawba County, North Carolina, USA
87.0km (54.1 miles) ⓘDagenhart Mine, Alexander County, North Carolina, USA
91.8km (57.1 miles) ⓘBuffalo Vein Mine, Hiddenite, Alexander County, North Carolina, USA
References
Jacquot Jr,Richard James., 2003, Rock, Gem,and Mineral Collecting Sites In Western North Carolina, pg # 56
Pratt, Joseph Hyde (1933) Gems and gem minerals of North Carolina. American Mineralogist, 18 (4) 148-159
 
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