"WardsSci000756"
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Ward's Science Essentials® Breccia
Breccia is a sedimentary rock made up of angular rock fragments.
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Ward's Science Essentials® Calcite
Calcite is a translucent calcium carbonate mineral, mohs hardness 3.
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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® Obsidian
Obsidian is hard black colored, volcanic glass.
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Ward's Science Essentials® Gypsum
Massive sedimentary gypsum with a moh's hardness 2..
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Ward's Science Essentials® Gray Slate
Gray metamorphosed shale showing "slaty cleavage".
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Ward's Science Essentials® Fluorite
Fluorite is Green Halide mineral with moh's hardness 4.
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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
Metamorphosed rock showing foliation and rich in hornblende.
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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.
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Ward's Science Essentials® Milky Quartz
Massive white quartz with a moh's hardness 7.
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Ward's Science Essentials® Selenite
Selenite is a Clear gypsum mineral with a moh's hardness of 2.
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Ward's Science Essentials® Pink Gneiss
Pink Gneiss is foliated pink and black bands of biotite.