Spruce Pine Mining District
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The Spruce Pine Mining District is a swath of the valley of the North Toe River in northwestern North Carolina that is home to one of the richest deposits of gems and minerals in the world.[citation needed] Mined for its mica, kaolin, quartz and feldspar, the district provides much of the raw materials used in plumbing fixtures. Spruce Pine quartz is used in the manufacture of silicon chips.[1]
The district is named after the town of Spruce Pine, which is located in the middle of the region and is the hub of major mining activity there. The district is approximately 25 miles long and 5 miles wide.
[edit] References
- ^ Nelson, Sue (2 August 2009). "Silicon Valley's secret recipe". BBC News - Radio 4. BBC. http://news.bbc.co.uk/2/hi/technology/8178580.stm. Retrieved 2009-08-03.
[edit] External links
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