A fantastic thumbnail from a legendary find! The Chalcedony/Quartz covered Wulfenite of the Finch/Barking Spider Mine is very hard to come by, this thumbnail features multiple colors from white to orange in the Wulfenite contrasting perfectly with black Chalcedony. White blades of Wulfenite completely replaced by Chalcedony are highlighted with miniature Vanadinite and Mimetite. Finch Mine, Keystone Gulch, Chilito, Hayden area, Banner Mining District, Gila County, Arizona, USA. 1" x .25 " x 1", .1 oz.