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PHOTOMICROGRAPH

Red ball iconMANSON IMPACT STRUCTURE

Microphotograph of Biotite Grain  

PHOTOMICROGRAPH

Crystalline Basement Rocks

Impact-Deformed Biotite Grain

2-A Core--561 feet The yellow to red material is biotite, the dark stripes are rips along cleavage planes, and the light bands are mineralization within the rips.

field 3.2 x 2.1 mm
plane-polarized light

   
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