Metallic native silver with acanthite, silver sulfide. Thumbnail mineral specimen. From the famous Ontario silver mines at Cobalt. First discovered in 1903 Cobalt is one of the most prolific silver mining areas in the world.
Dimensions (millimeters): 20 x 15 x 12
Dimensions (inches): .75 x .6 x .5
Origin: Cobalt, Ontario, Canada
In acrylic museum box, aka Perky Box
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