Excavate and identify gemstones and minerals! Chip away to discover real gemstones and minerals in this kit which allows little archaeologists to get a hands-on experience. Test for hardness and streaks, dig for semi precious gemstones and minerals, and identify your treasures! Kids will be amazed at what they find and learn. Perfect for any rainy day, this is a fun and engaging learning kit providing a world of adventure, discovery and wonder.