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® Hematite (Red Ochre)
Supplier: Avantor
Red, earthy, in natural chunk form; common pigment ore.
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Ward's® Magnetite (Lodestone)
Supplier: Avantor
Spinel group; iron-black, massive; natural magnet.
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Calcite (Chalk)
Supplier: Avantor
Classic, white chalk, massive; from Cliffs of Dover, England.
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Ward's® Magnetite (Crystalline)
Supplier: Avantor
Spinel group; black, dull metallic luster; common iron oxide.
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Ward's® Quartz (Milky)
Supplier: Avantor
White, massive, coarse crystalline vein, Mohs’ hardness of 7.
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Ward's® Microcline (Pink)
Supplier: Avantor
Feldspar group; pink cleavages showing perthitic texture, common potassium feldspar, Mohs’ hardness of 6.
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Ward's® Diopside
Supplier: Avantor
Pyroxene group; gray-green, coarse crystalline.
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Ward's® Chalcopyrite
Supplier: Avantor
Good grade, brass-yellow copper ore, massive.
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Ward's® Azurite
Supplier: Avantor
Bright blue crystalline veins and coatings in a matrix of mixed copper ore.
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Ward's® Gypsum (Selenite)
Supplier: Avantor
Clear, pure cleavages, Mohs’ hardness of 2.
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Ward's® Albite
Supplier: Avantor
Feldspar group; white to gray, sodium plagioclase cleavages; some faces may show twinning.
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Ward's® Pyrrhotite
Supplier: Avantor
Good grade, bronze-colored ore, massive.
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