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Igneous Rock Specimens


32  results were found
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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Description:   Dark gray, with hornblende as the dominant mafic mineral.
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Description:   Rhyolite is a pale, pink felsic rock with lower density than most igneous rocks.
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Description:   Coarse, “salt and pepper”: dark pyroxene and light andesine.
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Description:   Coarse-grained plagioclase and pyroxene with some olivine.
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Description:   Shiny black volcanic glass showing conchoidal fracture and some spherulites.
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Description:   Dark gray, composed mostly of pyroxene and olivine.
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Description:   Light gray, with flow structure.
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Description:   Pyroxenite is ultramafic igneous rock made up of primarily pyroxene minerals.
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Description:   Pegmatite is igneous rock similar to granite but with larger crystals.
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Description:   Classic, very coarse-grained igneous texture.
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Description:   Coarse-grained, with microcline, biotite and horblende phenocrysts.
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Description:   Gray andesite with large, blocky hornblende phenocrysts.
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Description:   Syenite a light-colored rock consisting of feldspars and hornblende.
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Description:   Pumice is light colored glassy rock that floats in water.
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Description:   Anorthosite is an intrusive, igneous rock consisting of predominantly plagioclase feldspar.
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Description:   Scoria is a dark-colored rock formed from lava with a high gas content.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-962-2660.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. To apply for a shipping account number, click here. If you need further assistance, call Customer Service at 800-962-2660 or email [email protected].
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