Apparel   T-Shirt Ammonites This adult shirt comes in assorted sizes and features a wonderful picture of several different species of ammonites, a prehistoric sea-dwelling creature that flourished over a hundred million years ago. $ 18.95               More Information      Quantity:     T-Shirt Heavy Metals This shirt is a perfect gift for the man or woman who loves both geology and "Heavy Metal." It has gold. silver, galena, stibnite, and pyrite. $ 18.95               More Information      Quantity:     T-Shirt From the Past to the Future This adult t-shirt comes in assorted sizes and can be purchased in either yellow or brown. $ 18.95               More Information      Quantity:     T-Shirt Minerals of the World This bright and colorful shirt features stones from all over the world. It has beatiful pictures on the front and back and is a wonderful gift for someone who truly appreciates the beauty of the earth. $ 18.95               More Information      Quantity:     T-Shirt Trilobite This adult t-shirt comes in many sizes and features a wonderful picture of Ceratocephala graffhami, a 465 million year old trilobite from Oklahoma. $ 18.95               More Information      Quantity:     T-Shirt for kids T-Rex We have many sizes of this Kid's T-shirt, which features the mighty T-Rex. It's perfect for any boy or girl who love dinosaurs. $ 12.95               More Information      Quantity:     Trilobites T-Shirt This adult sized t-shirt comes in all sizes and can be purchased in grey or green. It features a wide assortment of trilobites. $ 18.95               More Information      Quantity: