A fascinating and colorful classroom study set, the included minerals, collected from around the world, are ideal for introducing students to Mohs' hardness testing, basic rock-forming minerals and minerals and ores used in products important to our economy. The set is housed in a compartmented collection box.
Delivery information: Includes 36 numbered samples (1×2"): 9 Hardness Test Minerals, 15 Common Rock-Forming Minerals and 12 Economic Minerals and Ores.
Caution: Due to the nature of this product it may contain asbestos.