Pebbles, the name has been in use since antiquity. It is suitable for applications being used as grinding media.
Pebbles, hard substance. It ranges in color from White, Light Brown (Potata Color), Grey, Dark Grey & Greenish Gray. It occurs in rivers and mountains. The specific gravity ranges from 2.6 to 3. It has a hard solid look and a hardness of 6.8 to 8.5. Mostly impurities are rare.
The properties of Pebbles which make it of commercial value are ;
» Good Hardness Strength to Grind Minerals
» Mostly Rounded produces better results
» Silver Grey / Potato Color prevents discolor the final product
» Used as Grinding Media
