Friday, June 17, 2011

GeoJeopardy! Fridays #51

Time for GeoJeopardy! Fridays, because it is time to take a brake.

- Rocks & Stuff -

A rock called pridotite produces this hardest gem


This form of molten rock deep within the earth can reach a temperature of over 2100 degrees


This agreeable-sounding metamorphic rock has alternating bands of dark- & light-colored minerals


Most rocks are composed primarily of oxygen & this element


Soapstone, used as an electrical insulator, is a greenish-gray variety of this soft mineral

All the answers as well as any other previous GeoJeopardy! questions can be found over at my website by clicking the link.  

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Questions, images, and videos courtesy of

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