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WardsSci000450


32  results were found
Specimens

Specimens are available for use in a wide variety of organic and inorganic testing procedures. Organic samples can be utilized for dissection purposes or studying whole preserved or life specimens, with practical examples in cellular biology or the internal structures of whole organs and complex multicellular systems. Rock specimens are useful for studying textures, grain sizes, and other features brought about by pressure, temperature, and other natural forces, offering a glimpse into the Earth’s geological history.


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Description:   Coarse, “salt and pepper”: dark pyroxene and light andesine.
Description:   Dark gray, composed mostly of pyroxene and olivine.
Description:   Shiny black volcanic glass showing conchoidal fracture and some spherulites.
Description:   Rhyolite is a pale, pink felsic rock with lower density than most igneous rocks.
Description:   Coarse-grained plagioclase and pyroxene with some olivine.
Description:   Coarse-grained, with microcline, biotite and horblende phenocrysts.
Description:   Classic, very coarse-grained igneous texture.
Description:   Pale pink felsite, with small sanidine phenocrysts.
Description:   Obsidian is hard black colored, volcanic glass.
Description:   Abundant small black phenocrysts in a gray to brown matrix.
Description:   Dark gray with abundant gas pocket vesicles.

Description:   Volcanic glass with snowflakes embedded throughout.
Catalog Number: (470026-142)

Description:   Banded volcanic glass.
Description:   Glassy; most specimens float in water.
Description:   Gray-to-brown basaltic, with over 50% vesicles.
Description:   Gabbro is Mafic igneous rock formed deep underground consisting of olivine and pyroxene.
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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.
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