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Scanning electron micrograph of obsidian grain from about 26 m in drill hole Y-2. Yellowstone National Park, Wyoming. No date.

Summary

Figure caption: Scanning electron micrograph of obsidian grain from about 26 m in drill hole Y-2. Perlitic cracks and shallow solution pits in the grain are partly filled by clinoptilolite and montmorillonite. Scale bar is 30 microns. No index card. Published as Figure 8 in Zeolites in Yellowstone National Park. The Mineralogical Record; 12: 29-38. Note: Similar to bke00003_mm00716.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Bargar, Keith E.

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Material Request Instructions

Available in the USGS Photographic Collection, MM00716 (MicroMARC) Collection, located in cold storage Box 1MM (Bargar/MM00716).

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This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html
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Photo Number https://www.sciencebase.gov/vocab/category/item/identifier bke00029_mm00716

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