Three Miles east of Pontotoc on the Rosalba Lake farm are the Rock Quarry Hills. They are composed of calcium silicate rock, which is found in large quantities. It is a very hard, flinty rock which is splendid for building houses or roads.
Samples of this rock have been sent to Washington D. C. for analysis, which analysis showed a high grade calcium silicate rock. Tests were made by the county highway commission, through W. P. A. Labor, of other rock from different parts of the county, all of which was found to be more or less hard lime, subject to slacking on being exposed to the air. The Rosalba rock quarry was the only rock of its kind found in the county. This calcium silicate rock has only been used so far for road purposes and building in a small way, but with perfect satisfaction. (1)
(1) Clarence Bolton, mineralogist, Pontotoc, Mississippi.