limestone, are clear or white. However, with impurities, they can take on a variety of colors, commonly white, tan or gray. Limestone can also have gone through metamorphosis, with high pressure, heat and time creating marble.the effect of an acid can be somewhat reduced by treating the ground limestone powder with fatty acids to put a non-polar, organic material on the surface. Few industrial minerals can match GCC for its combination of properties and cost.

limestone, are clear or white. However, with impurities, they can take on a variety of colors, commonly white, tan or gray. Limestone can also have gone through metamorphosis, with high pressure, heat and time creating marble.the effect of an acid can be somewhat reduced by treating the ground limestone powder with fatty acids to put a non-polar, organic material on the surface. Few industrial minerals can match GCC for its combination of properties and cost.