chrome ore , Originally from South Africa ,is a special kind of sand for casting , chromite sand is a natural spinel mainly composed of chromite , Chromite sand foundry used as a highly fireproof sharpener for moulds and cores.

Its properties enable the material to be used in high duty grey iron and steel foundries as core and mould making sand. 

In steel production, Chromite Sand is used as well filler for protection of the sliding gate in large steel holding ladles.

When ground to a fine flour, Chromite Sand is used for the production of green glass beverage containers