Friday, May 20, 2011

GeoJeopardy! Fridays #47

Time for GeoJeopardy! Fridays, because it is a lazy day.

- Minerals -

       You’ll discover not gold, but a black mark, after rubbing this “gold” on porcelain


   A scratch test won’t reveal a mineral’s allergies, but this property


Over half the use of this mineral in the U.S. is for spreading on roads & highways to melt ice & snow


   Steatite, or soapstone, is a compact variety of this soft mineral


   German geologist Abraham Werner gave this mineral its name, derived from a Greek word for "to write"


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Questions, images, and videos courtesy of

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