"Ward's Phenomena"
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Ward's Science Essentials® Conglomerate
Clearance
Conglomerate is a sedimentary rock made up rounded quartz pebbles.
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Ward's Science Essentials® Scoria
Clearance
Scoria is a dark-colored rock formed from lava with a high gas content.
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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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