1. Minerals of Texas
  2. Minerals of Central Texas

McCulloch County

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  • Frac Sand, McCulloch County, Texas

    Frac Sand, McCulloch County, Texas

    Mineral: Proppant Frac Sand (SiO2) Location: Fairmont Santrol mine in Voca County: McCulloch County, Texas Chemical Formula: Quartz Sand (SiO2) Other interesting facts: Details in: Kyle, J. R., and E. F. McBride. "Geology of the Voca frac sand district, western Llano uplift, Texas." Proceedings of the 48th Annual Forum on the Geology of Industrial Minerals: Arizona Geological Survey Special Paper. Vol. 9. 2014.

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