PlagioclaseFeldsparUSGOV.jpg
Plagioclase feldspar .
Public domain Public domain false false |
This image is in the
public domain
in the United States because it only contains materials that originally came from the
United States Geological Survey
, an agency of the
United States Department of the Interior
. For more information, see
the official USGS copyright policy
.
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[1] archive copy at the Wayback Machine