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"pathway PLASTICS, INC."

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Pumice (Light Gray)

Pumice (Light Gray)

Glassy; most specimens float in water.

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Ward's® Rhyolite (Gray)

Ward's® Rhyolite (Gray)

Light gray, with flow structure.

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Ward's® Andesite (Porphyry)

Ward's® Andesite (Porphyry)

Gray andesite with phenocrysts of felspar and/or hornblende.

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Ward's® Basalt (Flood)

Ward's® Basalt (Flood)

Classic, dark; from the Columbia Plateau.

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Ward's® Diorite

Ward's® Diorite

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

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