"Ward's Phenomena"
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Ward's Science Essentials® Muscovite
Clearance
Muscovite is a mica mineral cut to demonstrate basal cleavage.
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Ward's Science Essentials® Obsidian
Clearance
Obsidian is hard black colored, volcanic glass.
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Ward's® Black Sand
Clearance
1 pound of black sand packaged in a heat-sealed bag.
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Ward's Science Essentials® Pink Marble
Clearance
Pink/grey marble colored metamorphosed carbonate rock.
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Ward's Science Essentials® Gray Slate
Clearance
Gray metamorphosed shale showing "slaty cleavage".
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