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, and an identification list is included.Contents:36 numbered samples, 1″ x 1″Minerals:Hardness Test Minerals (9), Common Rock-Forming Minerals (15), Economic Minerals and Ores (12)
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