About McClelland Laboratories

McClelland Laboratories, Inc. has been providing quality laboratory and consulting services to the minerals industry for over 33 years. Our services include metallurgical, environmental, analytical testing and consulting to meet the needs of our clients during all phases of project development, operation and closure. What started as a lab dedicated to the gold, silver and copper industries has expanded to provide services in a wide range of mineral markets.

MLI has an experienced staff of metallurgical, chemical and environmental science and engineering professionals and technicians working in over 44,000 square feet of laboratory and office space in Sparks, Nevada. We work closely with our clients to design testing programs which meet their project objectives. The MLI philosophy is to design testing programs and procedures to produce the maximum amount of data to efficiently add value to our clients’ projects. MLI understands that attention to detail and quality of work, along with prompt professional service, are of utmost importance to our clients.

Our laboratory services capabilities include:

  • Sample Preparation – RC and drill core, soils, concentrates and carbon, bulk samples
  • Comminution Testing
    • Crusher Work Index
    • Abrasion Index
    • Ball Mill Work Index
    • Rod Mill Work Index
  • Gravity Separation – precious and base metals
  • Flotation – precious and base metals
  • Leach Testing – bench scale through pilot scale, including
    • Heap Leach Testing – cyanide and alternative lixiviants (precious metals) and acid (base metals)
    • Milling – Leach Testing – cyanide, alternative lixiviants and acid
  • CIL, CIP, RIL, and RIP Testing
  • CCD Testing
  • Bio-oxidation and bio-leach testing – bench through pilot scale
  • Solution Recovery Testing
    • Activated Carbon
    • Precipitation
    • SX-EW
  • Environmental and mine characterization services
    • NDEP monitoring compliance
    • Leached heap neutralization rinse down testing
    • Kinetic ARD potential testing
    • Pit water quality evaluation
    • Pit dewatering
    • Soil attenuation/mobilization studies for land application of mine solutions
    • Passive and active wastewater treatment
    • Leached heap amendment and revegetation studies
  • Analytical services
    • Fire assay
    • Atomic Absorption
    • LECO Induction Furnace Analysis
    • Metallic screen analysis
    • Acid digestions
    • Cyanide shake tests

Our capabilities are further described on this site, but we will be happy to discuss your specific needs. Please feel free to contact us.