The Rock and Mineral card sets are a handy, colorful, and inexpensive reference for identifying rocks and minerals. It consists of Silicate Minerals (set of 67), Nonsilicate Minerals (set of 61), and Rock Specimens (set of 44) complete card sets.
There's no easier, more convenient way of learning essential properties of rocks and minerals than with these informative, decorative sets of cards. Vivid photos and important information on a variety of rock and mineral types are all contained on these trading-card-size reference cards. They are as useful as flash cards to help children learn or review key properties and features, or as informational supplements to specimen collections. Size: 3 1/2"x2 1/2"