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Cross-sectional view of a tubular tufa on the shore at Monument Rock, a site along the northwest shore of Pyramid Lake. The outer...
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Tubular Tufa

Pyramid Lake

Cross-sectional view of a tubular tufa on the shore at Monument Rock, a site along the northwest shore of Pyramid Lake. The outer light-colored concentric layers are composed of dense tufa; the inner radiating areas are composed of thinolite crystals. This specimen is aout 6 feet across. Photo © copyright by Robert Faucher.

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