Image: ObsidianOregon
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Original image (870 × 870 pixels, file size: 89 KB, MIME type: image/jpeg)
Description: A specimen of obsidian from Lake County, Oregon обсидиан состоит из лавы и 1% воды
Title: ObsidianOregon
Credit: No machine-readable source provided. Own work assumed (based on copyright claims).
Author: No machine-readable author provided. PAR~commonswiki assumed (based on copyright claims).
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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