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Ward's Science Essentials® Gray Slate
Gray metamorphosed shale showing "slaty cleavage".
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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® Talc
Talc is the softest know mineral with a moh's hardness of 1, and composed of clay.
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Ward's Science Essentials® Siltstone
Gray to tan clastic rock made of silt sized particles.
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Ward's Science Essentials® Gabbro
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® Sandstone
Red clastic rock composed of sand sized particles and hematite.
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Ward's Science Essentials® Graphite
A textbook example of pure crystalline carbon which is extermely soft.
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Ward's Science Essentials® Quartzite
Quartzite is hard, non-foliated rock formed from metamorphosed quartz sandstones.
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Ward's Science Essentials® Hornblende
Hornblende is a dark amphibole group mineral, perfect for teaching Bowen's reaction series.