Rock & Mineral Excavation Kit, Case of 12 Pyramids 4" x 3" x 1

4" x 3" x 1

The size ranges from 0

rex fossils are found in a variety of rock formations dating to the Maastrichtian age of the upper Cretaceous period

A tongue has a rounded rectangular shape as the base and three distinct surfaces as the dome

5)Al6(Si6O18)(BO3)3(OH)3(OH)

Rock & Mineral Excavation Kit, Case of 12 Pyramids 4" x 3" x 1Let your youngest rockhounds dig for 10 real rocks and minerals! Pyrite, Red Jasper, Marble, Quartz, Pumice, Calcite, Limestone, Copper, Agate, and Chalcopyrite are encased in a plaster block. Includes one wooden chisel and brush. The back of the box has a chart describing each rock or mineral included. A "Made in the U. S. A." product. Recommended for ages 5 & up. **There is a discount for 10 or more cases of Wack n' Crack Geodes or Fossil Excavation