Its geological position is in every respect similar to the metalliferous deposits at Potosi, except that there were no spars, calcareous or barytic, in sight.

Stone walks around the building and through the grounds were put down by the Silica Barytic Stone Company, of Ingersoll, at the cost of $579.02.

Also called Permanent white, and Barytic white, is, when well prepared, of superior body in water, but has less opacity in oil.