"WardsSci000764"
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Ward's Science Essentials® Milky Quartz
Clearance
Massive white quartz with a moh's hardness 7.
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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® Hornblende Schist
Clearance
Metamorphosed rock showing foliation and rich in hornblende.
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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® Red Slate
Slaty metamorphic rock containing hematite giving it its red color.
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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® Scoria
Clearance
Scoria is a dark-colored rock formed from lava with a high gas content.
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