Mineral Specimens
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® Kaolin (Powdered)
Supplier: Avantor
Pure kaolinite powder, 200 mesh.
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Ward's® Labradorite (Cleavage)
Supplier: Avantor
Feldspar group; good cleavages of pure soda lime feldspar; most show twinning and labradorescence.
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Ward's® Gypsum (Satin Spar)
Supplier: Avantor
White, fibrous, silky luster.
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Fluorite (Crystalline)
Supplier: Avantor
Deep purple, cubic crystal cluster.
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Ward's® Hornblende (Cleavage)
Supplier: Avantor
Amphibole group; dark greenish black cleavages, somewhat columnar.
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Epidote (Single Crystal)
Supplier: Avantor
Epidote (Single crystal), Ward's
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Ward's® Topaz (Crystals)
Supplier: Avantor
Gemmy, sherry-colored crystals and sections approximately 3/8– 1/2"
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Ward's® Sphalerite (Crystalline)
Supplier: Avantor
Dark brown to black; polycrystalline zinc ore.
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Almandine Garnet
Supplier: Avantor
Exemplary display of hexoctahedral crystal shape.
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Ward's® Graphite
Supplier: Avantor
Black, high grade, foliated, greasy feel.
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Ward's® Anorthite
Supplier: Avantor
Feldspar group; calcium end member plagioclase crystals in pyroxene matrix.
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Ward's® Limonite
Supplier: Avantor
Brown, earthy, massive; used for yellow pigment.
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Ward's® Quartz (Rock Crystal Points)
Supplier: Avantor
Clear, euhedral points and sections.
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Ward's® Quartz (Chert)
Supplier: Avantor
Light gray, compact, hard, opaque, microcrystalline silica mineral.
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Ward's® Fluorite (Fluorescent)
Supplier: Avantor
Brown, fluorescent crystals intergrown in dolomite rock.
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Ward's® Biotite
Supplier: Avantor
When minerals, rocks, and fossils cannot be accurately identified by macroscopic observation and testing, thin section slides can reveal the composition and structure of the specimens on a microscopic level.
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