Keystoneite

Fine-grained tan coating of keystoneite in a vug in the right of centerwith gray-silvery altaite cleavages on lower left edge, small blue tarnished hessite grain on left edge and small blue tarnished grains near lower center edge and , bronzey mass of petzite on upper center edge as well as near center of the specimen, light creamy metallic tan ...

© Van King

Yellow acicular crystals of keystoneite associated with choloalite and hessite. Specimen has been analyzed. Brent Thorne specimen and photograph.

© Brent Thorne

Yellow Keystoneite on Quartz. Picture size 2 mm. Photographer and collection Thomas Witzke.

© Thomas Witzke and Abraxas-Verlag

Acicular crystals of keystoneite on quartz. Associated minerals, not in the photograph, include, magnolite, coloradoite, and native mercury. Part of the co-type specimen. Previously in the collection of William W. Pinch. Brent Thorne specimen and photograph.

© Brent Thorne 2010

Close-up showing yellow keystoneite associated with green choloalite on quartz matrix. See the entire specimen in the other photo. Photographed by, and in the collection of Dan Costian.