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General Collection of Rocks and Minerals
Students discover the variety of rocks and minerals with this collection.
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North American Rock Collection
This collection with rock types and associations with the North American continent contains 100 specimens with each group represented: igneous, metamorphic, and sedimentary. Specimens are approximately 1"" x 1"", number-coded in compartmented container.
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Ward's Science Essentials® Obsidian
Obsidian is hard black colored, volcanic glass.
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Ward's Science Essentials® Gray Slate
Gray metamorphosed shale showing "slaty cleavage".
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Ward's Science Essentials® Chert
Chert is a microcrystalline, hard, silica mineral.
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Ward's Science Essentials® Granite
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
Pumice is light colored glassy rock that floats in water.
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Ward's Science Essentials® Conglomerate
Conglomerate is a sedimentary rock made up rounded quartz pebbles.
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Ward's Science Essentials® Tufa
Carbonate rock formed by the precipitation from water.