Instruct: Classify Amazon reviews into positive or negative sentiment
Query: PETRIFIED WOOD by Frank J Daniels

This is a beautiful volume that is a visual treat for any enthusiast in the area of geology, paleontology, rocks and minerals. It's an attractive "coffee table" book replete with page after page of gorgeous color plates of the world's loveliest petrified wood specimens. There are also text portions that explain the geology and history of the fossilized wood. Some of the paleobiological terms are quite technical. It's not for everyone, but the book is beautiful for those with eyes that find fascination in ancient trees that have now turned to mineralized stone.