Industrial Minerals, Ore & Mining Testing - Clark Testing

Industrial Minerals, Ore & Mining Testing

Clark Testing is an experienced analytical lab providing ASTM test methods for a wide range of Industrial Minerals Testing. Clark has a long history of providing analytical chemistry services for producers and manufacturers in the industrial minerals. Clark provides sample preparation and analytical testing for all types of industrial minerals. Our lab is operated under a rigorous ISO 17025 Quality Assurance Program that assures the mineral product meets our customer’s criteria for their application and industry specification.

Clark’s analytical chemistry laboratory is equipped with state of the art instruments to test and analyze a wide range of industrial minerals. Clark can to the chemical analysis determining the physical properties or the chemical breakdown. Our Analytical Chemistry lab supports product validation, product comparison including trace element analysis and particle characterization. Clark tests are in accordance with ASTM standards, including ASTM C110 and ASTM C25, to deliver reliable, repeatable results you can trust.

Building Materials

  • Slate
  • Dolomite
  • Granite
  • Gypsum
  • Marble
  • Pumice
  • Limestone
  • Cement (Portland)


  • Bentonite
  • Talc
  • Kaoline
  • Ball Clays
  • Vericulite
  • Pumice

Refractory Materials

  • Corundum
  • Adalusite
  • Potash
  • Sillimanite
  • Kyanite


  • Silica Sand
  • Feldspar
  • Diatomite
  • Tripoli
  • Mica
  • Coal Ash
  • Quartz
  • Perlite
  • Coke Ash
  • Olivine
  • Fly Ash


  • Aluminum Ore / Bauxite
  • Iron Ore
  • Sinters
  • Base Metal Ore

Slag and Flux

  • Fluorspar
  • Basic Slag
  • Wollastonite
  • BOP Slag
  • EAF Slag
  • Slag Conditioners


  • Baryte
  • Alunite
  • Mirabilite



Clark also provides ASTM sampling and sample preparation services either at mine sites or barge & rail transportation terminals. We have in-house sample prep capabilities with machining, grinding and polishing capabilities to ensure qualified test specimens are being analyzed. Our particle characterization services provide particle count, density, surface area and porosity.

Testing Services Offered

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Clark Testing has been providing product qualification testing and design verification for manufactures for over 20 years. We provide our clients with independent testing.

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