BENTONITE members
Bentonite has become an essential mineral for a myriad of engineering, industrial, manufacturing and environmental uses. The Concise Guide to Wyoming bentonite introduces you to this versatile mineral mined right here in Wyoming, and will illustrate how its production impacts our state’s economy.
Bentonite: The Clay of A Thousand Uses
BENTONITE MEMBERS
American Colloid Company
BELLE/COLONY OPERATIONS
P.O. Box 2010
Belle Fourche, SD 57717
(605) 892-6371 phone
(605) 892-3178 fax
LOVELL OPERATIONS
P.O. Box 428
Lovell, WY 82413
(307) 548-6521
(307) 548-6413
822 Road 6
Powell, WY 82435
Bentonite Performance Minerals, LLC
COLONY OPERATIONS
554 US HWY 212
Belle Fourche, SD 57717
(307) 896-2596 phone
(307) 896-4588 fax
LOVELL OPERATIONS
P.O. Box 547
Lovell, WY 82431
(307) 548-2271 phone
(307) 548-6340 phone
Black Hills Bentonite, LLC
MILLS WYOMING OFFICE
P.O. Box 9
Mills, WY 82644
(307) 265-3740 phone
(307) 235-8511 fax
TOLSA Wyoming Bentonite
Tolsa completed the purchase of assets and mining claims of Rock Springs Minerals and US Bentonite in late December of 2014. Since December, they’ve run preliminary trials, staffed the facility and are in the process of initial production runs. Tosla has invested millions of dollars since the acquisition and has more scheduled and budgeted for 2016 with the clear intent of expanding operations in Wyoming and throughout the US. As a 60+ year old family owned mineral extraction company, Tosla currently operates in over 90 countries with production and processing facilities in 11 of those countries. With a presence in the US since 2010, the Casper acquisition is the culmination of many years of searching for the right avenue into the US bentonite market. Tosla is very excited about their Tolsa Wyoming Bentonite project and the opportunity to become a member of the Wyoming and national bentonite community. Visit them on the web at www.tolsa.com for a better understanding of the Tolsa family and the wide array of mineral products they produce and distribute on a global scale. WMA welcomes Tosla Wyoming Bentonite to the Wyoming mining community!
| Physical Address | Mailing Address |
| 12050 Bucknum Road, #1 | |
| Casper, WY 82604 |
307-224-5114 phone
WYO-BEN Inc.
CORPORATE OFFICE
P.O. Box 1979
Billings, MT 59103-1979
(406) 652-6351 phone
(406) 656-0748 fax
SAGE CREEK PLANT
P.O. Box 115
Lovell, WY 82431-115
(307) 548-6577 phone
(307) 548-6792 fax
STUCCO PLANT
P.O. Box 1072
Greybull, WY 82426-1072
(307) 765-4446 phone
(307) 765-2664 fax
The Clay of A Thousand Uses
Bentonite has been called “Miracle Mud” and the “Clay of a Thousand Uses.” Some of these include absorbents, animal feed, drilling fluids, foundry, iron ore pelletizing, and sealants. Wyoming bentonite is particularly in demand for pet litter because of it’s ability to absorb many times its volume in water and control odors. Among other uses, bentonite is found in crayons, medication, and cosmetic such as shampoos, lotions, face creams, and lipstick.
Originally, Wyoming bentonite was used by local Indians as a bleaching clay and a washing agent. Pioneers used it as a substitute for axle grease to cure inflamed horses hoofs and to waterproof roofs.
Today bentonite is used in a variety of industries including the metal casting industry where it is used as a bonding material for molding processes. When mixed with certain types of molding sands, a bond is formed that can withstand very high temperatures.
Bentonite is also used in the ceramic and building industries where it is mixed with clay and sand to form adhesive which is effective in sealing against water.
BENTONITE INDUSTRY MEMBERS



