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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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Pyrite (Best Grade)
Shiny crystal clusters and crystalline groups, this 'fools gold' is brassy and leaves a black streak.
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Ward's® Microcline (Pink)
Feldspar group; pink cleavages showing perthitic texture, common potassium feldspar, Mohs’ hardness of 6.
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Ward's® Quartz (Milky)
White, massive, coarse crystalline vein, Mohs’ hardness of 7.
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Ward's® Magnetite (Crystalline)
Spinel group; black, dull metallic luster; common iron oxide.
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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® Azurite
Bright blue crystalline veins and coatings in a matrix of mixed copper ore.
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Ward's® Labradorite (Cleavage)
Feldspar group; good cleavages of pure soda lime feldspar; most show twinning and labradorescence.
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Ward's® Hornblende (Cleavage)
Amphibole group; dark greenish black cleavages, somewhat columnar.