- Minerals -
You’ll discover not gold, but a black mark, after rubbing this “gold” on porcelain
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A scratch test won’t reveal a mineral’s allergies, but this property
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Over half the use of this mineral in the U.S. is for spreading on roads & highways to melt ice & snow
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Steatite, or soapstone, is a compact variety of this soft mineral
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German geologist Abraham Werner gave this mineral its name, derived from a Greek word for "to write"
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