Alcatraz Penitentiary - SOLD 2.60" Showcase Concrete mmj-hq-kk This technique fuses the paint

This technique fuses the paint together in a beautiful rainbow of beachy colors

which measures 3

James Lovell

The opal fields here date to the Cretaceous when Central Australia was home to an enormous inland sea

We were drawn to these beautiful minerals specifically due to the way they capture and reflect the light

Alcatraz Penitentiary - SOLD 2.60" Showcase Concrete mmj-hq-kk This technique fuses the paintThis is an authentic piece of concrete from Alcatraz Penitentiary. Yes, an actual piece of The Rock!" This particular specimen measures 2. 60" along the widest point. This specimen, from the famous Alcatraz Island, saw some 1,500 prisoners pass by it during the prison's operation. A certificate of authenticity is included.