4740 Zektzerite, Elpidite, Aegirine, Arfvedsonite, Astrophyllite, North Cascades Hwy, Milepost 166, Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA

October 5, 2019 North and Central Americas United States Washington

Washington Pass is the Type Locality for Zektzerite. Collected by Bruce Kelley, 2014,

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