"WardsSci000760"
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Ward's Science Essentials® Pumice
Clearance
Pumice is light colored glassy rock that floats in water.
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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® Phyllite
Clearance
Phyllite is a light-gray foliated rock formed from metamorphosed slate.
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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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