Nomarski (NDIC) image of plagioclase phenocryst and groundmass from 1985 lava flow of Arenal volcano, Costa Rica; phenocryst is 300 ºm in length (M. Streck). Originally uploaded in Cutting Edge:Courses:Petrology.
Image 13656 is a 3110 by 4219 pixel JPEG Uploaded:
Last Modified: 2008-11-28 19:32:49 Permanent URL: http://serc.carleton.edu/download/images/13656/zoned_minerals.jpg
Provenance Dave Mogk, Montana State University-Bozeman
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