"Freeze-Dried Specimens"
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Ward's Science Essentials® Siltstone
Clearance
Gray to tan clastic rock made of silt sized particles.
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Ward's Science Essentials® Gabbro
Clearance
Gabbro is Mafic igneous rock formed deep underground consisting of olivine and pyroxene.
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Ward's® Science Essentials® Anorthosite
Anorthosite is an intrusive, igneous rock consisting of predominantly plagioclase feldspar.
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Ward's Science Essentials® Limestone
Limestone is a gray calcium carbonate that will fizz with dilute HCl.
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Ward's Science Essentials® Granite
Clearance
Porphyritic igneous rock containing biotite, feldspar, and hornblende.
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Ward's® Science Essentials® Pegmatite
Pegmatite is igneous rock similar to granite but with larger crystals.
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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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