Amethyst sage plume agate
Also know as “Demio Dendritic Agate” or “ Quinn River Agate” is definitely
A chalcedony with plumes or dendrites. It is found along the Quinn River, Winnemucca, in the Humboldt Co. south of Denio, Nevada.
The stone is natural and hand mirror polished on both side.
Size: 34.2x34.2x4.5 mm.
Weight: 53.67 ct.