The Oneota Dolomite Formation near Mankato, Minnesota, has historically been a superior source for cutting and extracting limestone blocks, which are fabricated into various building stone products. Immediately below the Oneota Dolomite Formation lies the Jordan Sandstone Formation, which consists of a Cambrian Age sand deposit of unparalleled purity and quality. The unique composition and shape of the monocrystalline sand grains in the Jordan Sandstone make it a premier industrial sand for use as a proppant to enhance the recovery of hydrocarbons from oil and natural gas wells.

Jordan Sands has one of the cleanest and well-worked Cambrian Age sand deposits available in the United States. Through thorough analysis by our internal team, independent laboratories, and independent laboratories specializing in proppants, it has been repeatedly demonstrated that Jordan Sands’ silica sand deposit, exceeds the standards set by the American Petroleum Institute (API) and International Organization for Standardization (ISO).

  • Low Solubility
  • Low Turbidity
  • High Krumbein Factors (Roundness & Sphericity);
  • High Crush Resistance

The combination of these superior physical characteristics results in greater well performance and long-term conductivity that will keep your profits flowing.


Jordan Sands produces industry recognized blends of 20/40, 30/50, and 40/70 and utilizes a combined quality control effort to ensure customers expectations are met at the well. Our on-site laboratory completes in process quality checks from the mine to the final loading into the rail car. If at any point, an unsatisfactory result occurs, immediate corrective protocol exists to remedy the problem and prevent recurrence. In addition to our own testing processes, we work with industry recognized independent laboratories to ensure and enhance our quality controls.