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| Click on image to enlarge. Photo © Daniel R. Snyder |
Epidote (high-birefringence, high-relief mineral, at right), pyrite (opaque mineral grains at left), and titanite (brown mineral surrounding pyrite). Greenschist, specimen No. 1. Pebble in glacial gravel, southeastern Michigan. Provenance likely northern Ontario. XPL above, PPL below. Imaged area 1.3mm by 2mm.
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| Click on image to enlarge. Photo © Daniel R. Snyder |
