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.
Polished section (left) and rough hand sample (right) of Josephine peridotite, a component of the Josephine ophiolite sequence, southwest Oregon and northwest California. Dark grains in polished section (also slightly darker grains in rough hand sample) are orthopyroxene, remainder is olivine. Light areas around edges are weathered rind; white lines are saw marks. Josephine County, Oregon. Scale in centimeters.
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