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 This thin section of basalt allows us to see the crystals in greater detail and through polarized light that is shining through the very thin slice of polished rock. Arrows point to olivine, plagioclase, and glass, the three principal components of submarine pillow basalt. Photomicrograph by Mike Perfit, U. Florida.


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This thin section of basalt allows us to see the crystals in greater detail and through polarized light that is shining through the very thin slice of polished rock. Arrows point to olivine, plagioclase, and glass, the three principal components of submarine pillow basalt. Photomicrograph by Mike Perfit, U. Florida.

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