TIERRAS INDUSTRIALES HERRAN Y DIEZ, S.A.

Iniatially started with manufacturing Tripoli powder in 1893. For all this time the Tierras Industriales Group has built a reputation based on a simple mission: to excel in everything they do. At the core of this commitment has been a single minded dedication to do ehat they know best, processing the mineral to Tripoli. We export succesfully all over the wolrd to more than 20 different countries.
The product Tripoli is a Silica Acid on crystalline state, without quartz and quarcite, and doubled brittle crystals. Geologically it is a Silica (SiO2) , derived in one way of high Sillica quantity limy stone decomposition or alteration, or of the colloidal silica direct deposition caused by alkaline salts decomposition.
It is formed by agglomerateswhich break in contact with the disc and the metal, producing indestructibe primary crystals rounded of 2, 5u which are the producers of poliishing.