8:00 am - 4:30 pm. Monday through Friday.
Cornerstone Industrial Minerals, Inc.
Perlite Mining - The crude Perlite Ore is mined, crushed and hauled from the Tucker Mill Mine to the processing plant. It is then screened to various sizes and blends and is shipped via truck/railcar to customers for further processing. The perlite is then expanded in a furnace at around 1300 degrees where it expands up to 10-20 times its original volume. It is used for various applications in Horticulture, Construction & Industrial uses.