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Rock Specimens
Description:
Obsidian is hard black colored, volcanic glass.
Catalog Number:
(470346-970)
Description:
Volcanic glass with snowflakes embedded throughout.
Description:
Light gray, earthy.
Description:
Scoria is a dark-colored rock formed from lava with a high gas content.
Description:
Coquina is variety of limestone made up of shell fragments.
Description:
Pink/grey marble colored metamorphosed carbonate rock.
Description:
Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.
Description:
Coarse-grained, with microcline, biotite and horblende phenocrysts.
Description:
Porphyritic igneous rock containing biotite, feldspar, and hornblende.
Description:
Gray andesite with large, blocky hornblende phenocrysts.
Description:
Dark-green “verde antique”, containing some chlorite and calcite.
Description:
Brownish gray, kerogen-rich; commercial oil source.
Catalog Number:
(470106-752)
Description:
Sedimentary Rock Set of 18
Description:
Dark, coarse-grained, and composed chiefly of hornblende.
Description:
Everything You Need to Organize Your Specimens
Description:
Carbonate rock formed by the precipitation from water.
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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 is still displayed and you need assistance, please call us at 1-800-962-2660.
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