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® Obsidian (Brown and Black)
Supplier: Avantor
Banded volcanic glass.
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Pumice (Light Gray)
Supplier: Avantor
Glassy; most specimens float in water.
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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® Basalt (Flood)
Supplier: Avantor
Classic, dark; from the Columbia Plateau.
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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 Science Essentials® Igneous Rocks Collection
Supplier: Avantor
Introduce your students to rocks formed from the cooling of magma and lava.
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Ward's® Anorthosite
Supplier: Avantor
Coarse grained and abundant in plagioclase feldspar.
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Ward's® Snowflake Obsidian (Cristobalite), Student Specimens
Supplier: Avantor
Volcanic glass with snowflakes embedded throughout.
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#: CA21905-026
Supplier: Kimberly-Clark