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"WardsSci000450"

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Ward's® Scoria

Gray-to-brown basaltic, with over 50% vesicles.

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Ward's® Obsidian (Brown and Black)

Ward's® Obsidian (Brown and Black)

Banded volcanic glass.

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Pumice (Light Gray)

Pumice (Light Gray)

Glassy; most specimens float in water.

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Ward's Science Essentials® Granite

Ward's Science Essentials® Granite

Clearance

Porphyritic igneous rock containing biotite, feldspar, and hornblende.

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Ward's® Basalt (Massive)

Ward's® Basalt (Massive)

Grayish black trap rock.

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Ward's Science Essentials® Gabbro

Ward's Science Essentials® Gabbro

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Gabbro is Mafic igneous rock formed deep underground consisting of olivine and pyroxene.

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