Felsite Porphyry
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Description:
A sample of felsite porphyry with white, pink and black, large grains in a fine-grained, greenish matrix. Two sides were cut smooth and one was sprayed with clear enamel. It is a volcanic dike rock bearing fragments of other dark gray rocks, and light pink crystals of feldspar. Collected about six miles southwest of Winnsboro, circa 1972.
- Site: SC; Fairfield Co.
- Site Number: NH37
- Dimensions: H-6 W-10 D-12 cm
- Rock type: Igneous
- Collection: Geology Collection
- Object Name: Igneous Rock
- Object Id: GR48
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