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.

CLAY & MINERAL EXCHANGE Link (New )

Special offerings on excess or discontinued products.

Featured Products & Services

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

• H&G’s CORNWALL STONE

  • Nov 2011 Issue Ceramics Technical 

• GILLESPIE BORATE™ 

  • May 2011 Issue Ceramics Technical

  • Glaze Formulation

• GROLLEG™ 

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

• MOLOCHITE™

• PETALITE

• Spanish Red Iron Oxide (Product of Spain)