Granite Porphyry
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Description:
One specimen of coarse-grained granite porphyry. The ends of the specimen were coarsely cut. White plagioclase crystals up to 3 inches long make this rock an exceptionally attractive building stone. It is typical of a belt of similar rock running through the central Piedmont of South Carolina, which includes the better known granitic bodies near York. The rock is from the Bald Rock coarse porphyry, the largest single granite body in South Carolina, underlying about 25% of Union Co., and part of Cherokee Co.; it was collected from the quarry 5.5 miles west of Lockhart, circa 1972.
- Site: Union Co.
- Site Number: SC14
- Dimensions: H-9 W-22 D-23 cm
- Rock type: Igneous
- Collection: Geology Collection
- Object Name: Igneous Rock
- Object Id: GR29
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