Perfect for those who love rocks or card games - or both! Set includes a standard deck of 52 playing cards, each featuring a fact about a rock, mineral or gemstone. You can play all of your favorite card games, plus follow the included instructions to play Rock Trivia and Mineral Memory. Also comes with more than 75 assorted rock specimens, along with a bag for storage - great for any rock collector. Assortment may vary. For ages 8 and up.