Dinosaur bone 25.24 cts oval cabochon 33.50 x 19.80 mm y30054 Utah, USA

Description

Dinosaur bone 25.24 cts oval cabochon 33.50 x 19.80 mm y30054 Utah, USA

DINOSAUR BONE
Great material with large colors variety and textures rare and unique. Most of dinosaur bone comes
from the North-American plateau from different geological age. There are various types of
fossilization such as replacement by chalcedony, opal and calcite. Rarely, we find agates with
fortifications. Quite often is a mixture of calcite and chalcedony. The higher is the silica content the
better is the pattern and so, the value increase. The richest period is Jurassic from the Morrison
Formation, along Wyoming, Utah and Colorado. This cab is from Utah, polished on the back too.