National Geographic Rock & Mineral Card Games 8yrs+

The National Geographic Rock and Mineral Playing Card Set comes with a standard 52 card deck and over 75 genuine gemstones! You can play all your favorite card games, and each card has a gemstone, rock, or mineral fact on it, making them great for trivia and memory games too. Instructions for memory and trivia games are included, as well as a convenient storage bag for all your new specimens.