"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® 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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Ward's Science Essentials® Sandstone
Red clastic rock composed of sand sized particles and hematite.
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Ward's Science Essentials® Soapstone
Soapstone is a talc-schist primarily composed of talc.
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Ward's Science Essentials® Siltstone
Clearance
Gray to tan clastic rock made of silt sized particles.
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