Geological Images

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Quartz Crystals

Unusual quartz crystals in orbicular jasper. Note the numerous dome shaped surface features on both the large cleavage surface and the smaller crystal faces.

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Quartz (Etched with HF)

 

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Quartz (silica)

 

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Lunar Spherule

Lunar spherule from Apollo 12. Note the agglomerated glass particles attached to the surface, the result of the meteor impact that produced this spherule or others subsequent impacts.

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Last Updated 03/09/11