Skip to content

Quality Control

At Northwest Minerals, quality begins at the source with careful selection of deposits and rigorous oversight throughout the entire production process.
 
  1.  Controlled Mining & Geological Monitoring: Our geologists conduct regular, on-site assessments to monitor geological and mineralogical variations. This includes in-situ ore inspections, geological mapping, and sampling.
    Samples are tested both internally for basic specifications and in external laboratories for asbestos and chemical composition.
  2. Selective Mining & Pre-Sorting: Talc is mined in open pits, then hand-picked at the mine depot to remove waste (carbonates, country rocks). It is sorted into granulometric classes and packed in jumbo bags for transport to our Peshawar facility.
  3. Advanced Sorting & Grading: At our Peshawar station, raw ore is screened and hand-sorted into tailored grades. Each incoming batch undergoes systematic testing for:
    • Whiteness.
    • Loss on Ignition (LOI).
    • Tests are performed at our in-house lab equipped with whiteness meters and LOI ovens.
  4. External Verifications: Asbestos analysis is conducted using SEM (Scanning Electron Microscopy) at accredited international labs.
    Chemical composition testing is subcontracted to certified external labs.
  5. Batch-by-Batch Quality Assurance: Each batch is individually sampled, coded, and tested. Any material not meeting our strict specifications is immediately rejected and removed from the supply chain.
Northwest is the only company in the region with such a comprehensive, quarry-to-port quality system, ensuring consistent, compliant, and reliable talc for global markets.