​​​​Featured Products 

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  • Kaolin Alternatives Solutions


  • GILLESPIE BORATE™ - consistent Clean reliable alternative to gerstley borate for glaze production


  • GROLLEG™ - kaolin for translucent and white porcelain ceramic bodies


  • AS-066 High Purity Quartz 99.9998%  - with Sodium of less than .4 ppm, used electronics or high temp refractories, excellent packing characteristics at .5 micron


  • HC-11 - A UNIQUE 100% Reacted CALCINED CORDIERITE PRODUCT used TO ENHANCE THERMAL SHOCK CHARACTERISITICS,


  • ​​H&G’S CORNWALL STONE - SPECIALIZED FELDSPAR IMPORTED FROM ENGLAND


  • MOLOCHITE™ - Calcine Kaolin imported from england


  • MICRONOX ON16- DESIGNED FOR THE REDUCTION OF SULFHYDRIC ACID  (H2S) IN THE BIOGAS OBTAINED IN ANAEROBIC BIOMETHANIZATION PLANTS. 


  • PETALITE - lithium based mineral used to improve thermal expansion and shock. Flame-ware  and shortened FIRING CYCLES.


  • g200 EU - A super clean Potash Feldspar used in bodies or glazes where organics are not acceptable


  • Spanish Red Iron Oxide - superior natural Iron oxide, a Product of Spain.

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 PH (973) 822-8000   /   sales@hamgil.com

Supplier of specialty clays and minerals

​Our business

Hammill & Gillespie imports, consolidates and distributes specialty clays and minerals from the leading international manufacturers of clays, feldspars, mica, silica’s and carbonates.  we provide custom mineral blends and sizing to meet the most varied and demanding requirements of industry. 

Distributor for Imerys NAC

Our knowledge and relationships in SOURCING minerals and raw materials have a global reach. our unique knowledge of processing ranges from custom milling, Screening and blending to re-packaging of raw materials, integrated sterilization and meeting unique specifications, This means we can offer a simplified and condensed supply chain.  

In addition to sourcing minerals Hammill & Gillespie has extensive knowledge in logistics, that extends to everywhere you do business. As you all know, transportation is an important cost component of raw material.  We will spend the extra time to develop a cost effective supply chain and maximized your shipping dollars.​

869A State Route 12, Frenchtown, NJ 08825 - (973) 822-8000

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