large amethyst point with three tiered crystal quartz points
Lightning ridge black opal
opalized and pyritized ammonite fossil - glorious!
Naturally-occurring Bismuth crystal
Opalized wood electric blue fire stone, 35.80 cts
Opalized 80 million years old Ammonite measuring 2 ft. in diameter, discovered near Alberta, Canada
This is another kind of opal, called the Fire Opal. It's found in Mexico and inside seems to be filled with flames or a sunset.