SMITHSONIAN ROCK AND GEM DIG
Put on your safety goggles and chisel away at your sand block as you excavate 6 different rocks and minerals and 5 real gemstones. Learn how different types of rocks form and the difference between rocks and minerals. Use the magnifying glass to inspect your samples. Then learn how to identify minerals based on hardness, cleavage, color, streak and luster.
Available at the following Retailers:
Target, Amazon, Barnes & Noble, Blain, Meijer, AC Moore, Joann, TJX: Home Goods, Marshalls, TJ Maxx