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Igneous Rocks
Description:
Fine to medium-grained with biotite.
Description:
Dark gray with abundant gas pocket vesicles.
Description:
Coarse-grained, with microcline, biotite and horblende phenocrysts.
Catalog Number:
(470026-250)
Description:
Gray-to-brown basaltic, with over 50% vesicles.
Description:
Pale pink felsite, with small sanidine phenocrysts.
Catalog Number:
(470025-988)
Description:
Coarse-grained plagioclase and pyroxene with some olivine.
Catalog Number:
(470017-340)
Description:
Abundant small black phenocrysts in a gray to brown matrix.
Description:
Grayish black trap rock.
Description:
Glassy; most specimens float in water.
Description:
Shiny black volcanic glass showing conchoidal fracture and some spherulites.
Catalog Number:
(470016-502)
Description:
This kit introduces students to igneous rocks.
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 is still displayed and you need assistance, please call us at 1-800-727-4368.
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 1-800-727-4368.
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