
The Green River Formation is one of the most famous rock units in the world for its fossils.Gifts That Rock

Gifts That Rock - What are the most popular gift items in the store?Fossil Gems

Fossil Gems Many gems such as coral, amber, ammolite, and petrified wood are fossils.Petrified Wood

Petrified Wood is a fossil that forms when dissolved material precipitates and replaces wood.Ammolite

Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites.Fossils and Beer

Fossils and Beer - Do you know which fossiliferous rock is used to make beer?Fossil Kits

Fossil Kits Learn how to identify fossils and where they fit into the geologic time scale.A Close Look at Coal

Coal Through a Microscope Coal is more than a black rock. It is THE most interesting rock.Climate & Ecosystems

Understanding Past Climate and Ecosystems West Coast Fossil Park, South Africa.Jet

Jet is a black organic gem material that forms from well-preserved woody material.Petrified Palm

Petrified Palm is a gem material found in Oligocene age rocks of the U.S. Gulf Coast.Turritella Agate

Turritella Agate is a brown agate containing snail fossils from the Green River Formation.What is Peanut Wood?

Peanut Wood is a type of fossil wood found in Australia. Do you know how it forms?Tucson Mineral Show

Tucson Mineral Show Photos A visit to the Tucson Gem, Mineral and Fossil Show.Geology Tools

Geology Tools - Hammers, field bags, hand lenses, maps, hardness picks, gold pans.