Saturday, September 24, 2011

Euhedral pyroxene in greenstone (full thin section)

Click on image to enlarge.          Photo © Daniel R. Snyder
Euhedral pyroxene crystals in greenstone. Specimen No. 54, cobble in glacial gravel, southeastern Michigan. Provenance likely northern Ontario. Macrophotograph in cross-polarized light. Imaged area 21mm by 39mm.

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