Play Cards and Learn to Identify Rocks and Minerals of the United States!Anyone who enjoys nature, the great outdoors, and rock collecting will love these cards for playing your favorite games or to use as flash cards. Inspired by Dan R. Lynch and the popular Rocks & Minerals Identification Guides, this gorgeous deck of playing cards features professional photographs of 52 of the most common and sought-after specimens found in the USA. Each card depicts full-color photographs of such rocks as basalt, granite, and sandstone, as well as minerals like copper, gold, and silver--so you can begin to learn what 52 different rocks, minerals, and gemstones look like.Card Features 52 of the most common and sought-after rocks and minerals 2 radioactive jokersBeautiful photograph on every cardIdeal for card games or as flash cardsPlay games like blackjack, poker, rummy, and solitaire while learning more about rock hunting. Get the Rocks & Minerals Playing Cards for yourself, and you can also give this deck of cards as a fun and thoughtful gift.