Porphyry

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Description:
A porphyry specimen that contains off-white feldspar phenocrysts with a purplish gray matrix (possibly garnet) and tiny mica particles. It was collected 2 miles north of the Southern Railroad bridge (probably Thicketty Hwy. Bridge), c. 1900.
- Site: SC; Cherokee Co.
- Site Number: NH44
- Rock type: Igneous
- Collection: Geology Collection
- Object Name: Igneous Rock
- Object Id: GR542
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