Alcatraz Penitentiary - 2.604" Showcase Concrete bags 88" polished Phylloceras fossil from

88" polished Phylloceras fossil from Madagascar

Remove surface dust with a clean

form through a process of accretion in which small bodies collide and coalesce into increasingly larger forms

Please Note: Foram sand beaches contain many billions of foraminifera remains along with other debris one is likely to find on many beaches

Above: Artist's Concept of the Tethys Sea during the Cretaceous (Source: Mini Museum)

Alcatraz Penitentiary - 2.604" Showcase Concrete bags 88" polished Phylloceras fossil fromThis is an authentic piece of concrete from Alcatraz Penitentiary. Yes, an actual piece of The Rock!" This particular specimen measures 2. 604" 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.