Walker Mountain
Skagit County
Washington

Ferristilpnomelane
Quartz

Sources:

Mustoe, George E. (1998)
Stlipnomelane at Blanchard Mountain, Western Skagit County, Washington
Washington Geology, Vol 26 No. 4, p.3-8

Information courtesy of Raymond Lasmanis, State Geologist, Division of Geology and Earth Resources, State of Washington.

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