"STEM kits"
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Ward's Science Essentials® Tufa
Carbonate rock formed by the precipitation from water.
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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® Gray Slate
Clearance
Gray metamorphosed shale showing "slaty cleavage".
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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® Bituminous Shale
Bituminous rich black shale for hands-on investigations.
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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® Shale
Shale is a rich, gray fissile clay rock.
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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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