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In close proximity to Enum Claw near the White River a thunderegg bed is originated that is bearing beautifully honey-, bluish- and white- colored agates. They show completely different patterns, so for instance fortification-agate, gravitational caused banding, perpendicularly arranged tubes of chalcedony and polygonal agate inclusions, which formed themselves between platy crystals of calcite.

The  website of the virtual Eibonvale Museum is giving more information and is showing several pictures of specimen from this locality.