Dicalite Management Group
Expanding the Future of Minerals since 1928
With 75+ years of experience, Dicalite’s flux-calcined and calcined diatomaceous earth provides exceptional filter aids and fillers for food and beverage processing, pool filtration and industrial applications.
The leading fully integrated provider of Perlite for construction, horticulture, filtration and fillers. Mined domestically; shipped internationally.
One of only two brands mining in the United States, Specialty Vermiculite is the preeminent producer of Vermiculite. Our product is mined in South Carolina and exfoliated across five state-of-the-art sites in North America.
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Our Minerals are Mined and Processed in the U.S.A and Expanded Across 12+ Locations in North America and Europe

The Dicalite Burney deposit is one of the premier commercial fresh-water deposits in the world. Its ore reserves are substantial to meet the projected market demands for the future.

Diatomaceous earth, also known as diatomite and DE, is the naturally occurring fossilized remains of diatoms—single-celled aquatic algae.

Dicalite Europe, based at the port of Ghent in Belgium is located in the center of Europe and produces milled, expanded perlite filter aids and fillers. In fact, The Dicalite Management Group, Dicalite Europe division, is the largest producer of perlite filter aids and functional fillers in Europe. Visit Dicalite Europe

Perlite is an essential filtration aid in many industries because of its low density, availability, performance, cost, and limited environmental footprint.

Dicalite’s natural Diatomaceous Earth is mined and processed at our facility in Basalt, NV. Dicalite’s Basalt mine is one our oldest serving mines, dating back to 1926. Currently the Basalt diatomite plant is the fourth oldest continually operated mine in the state of Nevada.

Our natural diatomaceous earth meets the National Organic Program standards and is dried, sized, and sold without further processing.

According to the 2017 USGS Mineral Commodity Summary, there are only two companies mining and operating Vermiculite domestically. Specialty Vermiculite Corporation (SPV) is one of those companies. SPV produces vermiculite concentrate in Enoree, South Carolina.

Vermiculite’s water-wicking, lightweight, and thermal-resistant properties make it ideal for many uses in horticulture, construction, and more.

Socorro Perlite production was the original source of New Mexico perlite, beginning production in 1949. The perlite dome that Dicaperl has developed at Socorro is one of the premier deposits in the world. The various ore products that are sold at Socorro are the result of controlled crushing and sizing to specified grades. The coarser grades of perlite ore are typically used as horticultural additives. The medium sizes are typically expanded into aggregate and building products. And the finest sizes are most typically used in the filtration market.

Perlite is one of nature’s most versatile and efficient minerals. It is formed by molten rock—volcanic glass—processes that trap water into the perlite matrix over geologic time periods. When perlite ore is heated rapidly, the volcanic glass softens, causing the entrapped water molecules to turn to steam and expand the particles, much like popcorn, and it grows up to 20 times its size. These expanded perlite particles are lightweight and insulated glass bubbles that can hold water and air.
Vertically Integrated: From Mine to Application
Dicalite Management Group is an international industrial minerals company with a unique multi-mineral platform including perlite, vermiculite, and diatomaceous earth, represented across three brands: Dicalite, Dicaperl, and Specialty Vermiculite. These processed minerals are used in wide variety of applications, and people are often only a few feet from a product created, enhanced, or treated by one of them.
We have 16 facilities across North America and Europe so we can provide better, faster service for our customers. With unequaled number of geographically dispersed processing sites and large ore reserves, we are the most vertically integrated supplier in our industry.