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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.
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Calcite (Chalk)
Classic, white chalk, massive; from Cliffs of Dover, England.
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Ward's® Azurite
Bright blue crystalline veins and coatings in a matrix of mixed copper ore.
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Ward's® Topaz (Crystals)
Gemmy, sherry-colored crystals and sections approximately 3/8– 1/2"
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Ward's® Albite
Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.
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Ward's® Calcite (Cleavage)
Pure translucent to white, rhombic cleavages, Mohs’ hardness of 3.
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Ward's® Citrine Quartz
Yellow to orange crystal with a glassy luster and smooth, often transparent appearance.