Frogskin Jasper Rough
Frogskin jasper has a very
cool frog-like pattern. It tends to be vuggy and the brown areas do not polish.
However, the really unusual pattern makes up for the diffiiculty of obtaining
a perfect finish. If stones are surface-treated, a more uniform polish can be
obtained. Frogskin Jasper polishes with diamond, cerium or tin oxide. Mohs hardness
7.