Rock Specimens
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.
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Ward's Science Essentials® Phyllite
Phyllite is a light-gray foliated rock formed from metamorphosed slate.
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Ward's Science Essentials® Siltstone
Gray to tan clastic rock made of silt sized particles.
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Ward's Science Essentials® Gabbro
Gabbro is Mafic igneous rock formed deep underground consisting of olivine and pyroxene.
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Ward's Science Essentials® Chert
Chert is a microcrystalline, hard, silica mineral.
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Ward's Science Essentials® Granite
Porphyritic igneous rock containing biotite, feldspar, and hornblende.
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Ward's Science Essentials® Pumice
Pumice is light colored glassy rock that floats in water.
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Ward's Science Essentials® Scoria
Scoria is a dark-colored rock formed from lava with a high gas content.
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Ward's Science Essentials® Conglomerate
Conglomerate is a sedimentary rock made up rounded quartz pebbles.
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Ward's Science Essentials® Muscovite
Muscovite is a mica mineral cut to demonstrate basal cleavage.
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Ward's Science Essentials® Obsidian
Obsidian is hard black colored, volcanic glass.