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.
Magic in the details

• 52 card deck allows you to play all standard card games
• Each card has a gemstone, mineral, or rock on it as well as a trivia fact about each specimen
• This kit includes more than 75 genuine gemstones, so you can see many of the specimens on your cards in real life
• A gemstone storage bag is included
• Instructions for memory and trivia games are included

The bare necessities

• Paper / rocks / minerals / stones
• 7 1/4” x 2 1/8” x 10”
• Bag of gemstones: 0.44 lbs
• Imported