At a GeoScienceWorld meeting this week. Some beautiful dark red garnets in a schist (metamorphosed shale) from Wissahickon Valley in Philadelphia.
Garnet Schist from Wissahickon Valley Philadelphia

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At a GeoScienceWorld meeting this week. Some beautiful dark red garnets in a schist (metamorphosed shale) from Wissahickon Valley in Philadelphia.
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