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Alteration associated with mud pots in Yellowstone National Park

Detailed Description

Alteration associated with mud pots in Yellowstone National Park. Left image is an overview of Artist Paint Pots. Note the white kaolinite alteration in the lower right and the red/pink mud pots near the boardwalk. Right image is charcoal-gray mud from Mud Volcano consisting of kaolinite with fine-grained pyrite and other iron sulfide minerals.

Sources/Usage

Public Domain.