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For a science experiment, a student rubs a mineral against a porcelain plate. The students has just performed
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For a science experiment, a student rubs a mineral against a porcelain plate. The students has just performed
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Sep 9, 2017
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For a science experiment, a student rubs a mineral against a porcelain plate. The students has just performed
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Waffleman
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A streak test. If you rub a mineral across a porcelain plate or tile you can examine the streak it leaves. This lets you identify the mineral you are rubbing.
Dennis Hunziker
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Sep 13, 2017
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Dennis Hunziker
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