Chalcedony (Var: Myrickite)

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Locality: Knoxville, Napa Co., California, USA

Colorful Myrickite specimen from the north end of the Napa Knoxville Recreation Area. I actually dug this out of the road.
The specimen was taken out in four large pieces.
Here are the two bookend pieces. The larger one is approximately 6"x5"x5".
The smaller one is approximately 4"x3"x3".

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