What is frac sand? American Geosciences Institute

Frac sand is a type of sand with small, uniform particles. It is injected into the rock formation along with the water used to fracture the rock in the process known as hydraulic fracturing ("fracking"). The sand is used to prop open the fractures that are created. Because the particles are uniform, fluids like water, oil, and gas are able to flow through the spaces between the particles.

Fracture (Frac) Sands in Kentucky, Kentucky Geological Survey, University of Kentucky

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Overview of Frac Sand Mining University of Wisconsin River Falls

St. Peter frac sand. U.S. Geological Survey

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What is frac sand? American Geosciences Institute

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