Barite

Last year in Tucson we were approached by some miners who had a new find out of an obscure Mexican locality. They had sold a half dozen so far, and we made a deal on the rest. After some cleaning we found them to range in color from pale yellow to pale blue. Crystal sizes were typically in the .3-1.2cm range. This particular specimen has crystals in the .4-.7cm range and has a soft yellow undertone with light blue finish. They have great luster. Only the second locality in Mexico to produce chisel shaped crystals.

Locality: Volcano Vein, San Diego Mine, Santa Barbara, Chihuahua Mexico

Composition: Barium Sulfate