Gneiss from the Bethlehem Gneiss series. Thin section contains biotite, plagioclase, alkali feldspar, and quartz. Hand sample shows slight discoloration (orange tinge) from weathering of an iron oxide, a high concentration of biotite, quartz, and feldspars.
Western Minerals Inc.
Is Part Of
Sunapee Quad., 0.6 mi W of exit 12A on I-89S.
Purchased from Western Minerals, Inc.
Number of Thin Sections