39.—Jasper.
Occurs in masses, either in veins or as rounded stones; dull lustre, yet takes a high polish; breaks with a curved surface; not attacked by acids; is scratched by Rock Crystal; gravity 2.5.
Value.—Used for mosaics and other ornaments when compact, fine-grained and bright color.
Localities.—Found everywhere. Sugar Loaf Mountain and Machiasport, Me.; Saugus, Mass.; Castleton and Colchester, Vt.; Bloomingrove, N. Y.; Murphy’s, Col.; Red Bluff, Mont.