"Ward's® Thermochemistry In The Bag Inquiry Demonstration Activities"
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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® Arkose
Red-brown to gray, coarse-grained, containing feldspar and mica.
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Ward's® Amphibolite
Dark, coarse-grained, and composed chiefly of hornblende.
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Ward's® Skarn
White, very dark green, and very dark red to light red granoblastic intergrowth of wollastonite, diopside, and andradite.
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