This blog provides a selection of images - mostly photomicrographs - of peridotites. Comments and questions are welcome. If you got here via a search engine, check out the blog archive (at right) - There's a lot to see. If you want to enlarge an image beyond what the interface allows, use "save image as", or drag it (the enlarged image) to your desktop and enlarge it further with graphics software or with your browser.
Serpentinite exposure adjacent to an extensive occurrence of Josephine peridotite. Because serpentine can't accommodate the iron in the peridotite protolith, much of this is taken up as hematite, visible as brick-red layers in the exposure. Road cut opposite Eight Dollar Mountain, Josephine County, SW Oregon. Rock hammer for scale is in the white circle at the bottom of the photograph.
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