Rudist Bivalve Fossil | Saudi Arabia | Late Cretaceous ammolite These dark red-violet rose rocks

These dark red-violet rose rocks consist of sandy crystals of barite (barium sulfate) in petal-like clusters that resemble a rose in full bloom

*Display stand not included

25” x 1” and weighs

the rosettes erode into positive relief on exposed rock surfaces

and emotional healing

Rudist Bivalve Fossil | Saudi Arabia | Late Cretaceous ammolite These dark red-violet rose rocksRudist bivalves are an extinct marine mollusk that operated as major reef builders in the Late Cretaceous. Their shell structure was heteromorphic, they often possessed a thick, calcitic attached valve and a smaller free upper valve. While rudists themselves are known for their strange and varied shapes, some groups within this subclass exhibit homeomorphic evolution, where unrelated species evolved similar, often parallel forms. This item is 5 x 4