Supplier of Specialty Clays and Minerals

Hammill & Gillespie imports, exports and consolidates specialty clays and minerals from the leading international manufacturers of clays, fieldspars, mica, silica’s and carbonates, and we manufacture specialty mineral products to meet the most varied and demanding requirements of industry. These industries include ceramic, pottery, castings, crucible, solar power, refractory, and cosmetics to mention a few.

Solutions:

Potassium Feldspar – G200 Replacement

Featured Products & Services

  • Aplite (Mineral used to improve furnace flow)

  • CORDIERITE (Linear Coefficient of Thermal Expansion <1 x 10-6 /°C)

  • H&G’s CORNWALL STONE

    • Nov 2011 Issue Ceramics Technical 

  • GILLESPIE BORATE™ 

  • GROLLEG™ 

  • High Purity Quartz 99.9998%  (Sodium of less than .4 ppm available)

  • MOLOCHITE™

  • PETALITE

  • Potash Feldspar

  • Spanish Red Iron Oxide (Product of Spain)