Classroom Minerals
Mineral specimens are cut in a variety of sizes to meet various user needs, with common uses including identification on the part of students, displays to be used during lectures and demonstrations, or as chips for convenient physical identification tests in labs. These mineral specimens also demonstrate a number of classic geological features, such as cleavage, and collections of minerals can be used to test the Mohs hardness of other minerals and compare them.
Ward's® Diamond
Small 1–1.5 mm crystal, octahedrans or cubes, Mohs” hardness of 10.
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Ward's® Oligoclase
Feldspar group; white-to-gray cleavages of sodic plagioclase; some show twinning.
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Ward's® Coals, Set Of 4
A classroom set that covers the major types of coal.
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Calcite (Chalk)
Classic, white chalk, massive; from Cliffs of Dover, England.
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Ward's® Corundum
Crystals and crystal sections up to 1", Mohs’ hardness of 9.
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Ward's® Fluorite (Cleavage)
Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.