Bird's Eye Rhyolite Rough
Unlike most orbicular rhyolite,
this Bird's Eye Rhyolite is nice, solid material that doesn't have vugs. It
has a fine, tight orbicular pattern and pleasant color contrast. It produces
great slabs as well as interesting cabochons. Bird's Eye Rhyolite is highly
silicified and polishes best with diamond, tin oxide or cerium oxide. Approximate
Mohs hardness 6.5 to 7.0.