Zektzerite, Arfvedsonite
Washington Pass, Golden Horn Batholith, Okanogan Co., Washington, USA
Thumbnail, 2.6 x 1.7 x 1.7 cm

Zektzerite is a very rare species found in large crystals only in the USA. This is a significant example, which occurs at its best only from two pockets found over decades of prospecting in this remote location. A cluster of two elongated crystals, with nice accents of arfvedsonite crystals attached, this is actually rather large and significant for the species.