This Gneiss sample type is from the Sparta East quadrangle. This is from the Lower Pre-Cambrian era
Supplemental Information: For additional information, contact the Virginia Department of Mines, Minerals, and Energy's Division of Geology & Mineral Resources on the web at: http://www.dmme.virginia.gov/divisionmineralresources.shtml
| Dataset Reference Date: | 1960-01-01 00:00:00.0 |
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