Igneous Rocks
Rock specimens are useful for studying textures, grain sizes, and other features altered by pressure, temperature, and other natural forces. Different select categories of rock specimens are available for purchase as well, including metamorphic, igneous, and sedimentary rocks. Sets of rock specimens are housed in compartmentalized collection boxes, with descriptions of each specimen printed for easy confirmation of identification. These rock specimens are carefully selected to be the highest quality to provide students with a suitable introduction to earth materials and their characteristics.
Ward's® Granite (Gray)
Supplier: Avantor
Fine to medium-grained with biotite.
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Ward's® Gabbro (Hornblende)
Supplier: Avantor
Dark gray, with hornblende as the dominant mafic mineral.
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Ward's® Diorite
Supplier: Avantor
Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.
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Ward's® Pegmatite
Supplier: Avantor
Classic, very coarse-grained igneous texture.
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Ward's® Basalt (Vesicular)
Supplier: Avantor
Dark gray with abundant gas pocket vesicles.
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Ward's® Peridotite (Coarse-Grained)
Supplier: Avantor
Dark gray, composed mostly of pyroxene and olivine.
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Igneous Rocks Topic Set
Supplier: Avantor
Study the Formation of Different Igneous Rocks
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Ward's® Basalt (Flood)
Supplier: Avantor
Classic, dark; from the Columbia Plateau.
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Ward's® Andesite (Hornblende)
Supplier: Avantor
Abundant small black phenocrysts in a gray to brown matrix.
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Ward's® Gabbro
Supplier: Avantor
Coarse-grained plagioclase and pyroxene with some olivine.
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Ward's® Igneous Rock Set of 18
Supplier: Avantor
Includes: six each of obsidian, pumice, and basalt. Set of 18.
Common rocks and minerals for testing and identification studies are 2–3cm each.
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Ward's® Andesite (Porphyry)
Supplier: Avantor
Gray andesite with phenocrysts of felspar and/or hornblende.
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Ward's® Igneous Rock Collection
Supplier: Avantor
Samples of Intrusive and Extrusive Igneous Rocks
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Ward's® Scoria
Supplier: Avantor
Gray-to-brown basaltic, with over 50% vesicles.
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