We will be updating this post in the future but until then you can download our full research PDF on silica here.

Our regional supplier buys Silica directly from the company US Silica.

US Silica supplies most of the silica used for clays and glazes in the US.

US Silica has mine locations across the country but four of these seem most likely to serve our supplier:

4800 Oklahoma Highway 1 North Mill Creek, OK 74856 (produces Sil-Co-Sil and 100 Mesh)

819 East Osage Street Pacific, MO 63069 (produces Sil-Co-Sil and 100 Mesh)

701 Boyce Memorial Drive Ottawa, IL 61350 (produces Sil-Co-Sil and 100 Mesh)

105 Burkett Switch Road Jackson, TN 38301 (produces Sil-Co-Sil and mentions ceramic applications specifically)

Each of these locations mentions surface mining. The Missouri and Illinois locations mention “a variety of mining methods, including hard rock and hydraulic mining” and “mechanical mining” for Illinois.