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Ships from USA
This is a wonderful herringbone pattern dendritic silver coated in safflorite. This was an extremely high grade silver mine producing 6.5 Moz of Ag from 1917-1931 alone! The mine was subsequently rehabbed and partially operated for a brief period in the 1980’s. This is a superbly aesthetic example of the extremely high grade material that was recovered from this mine. Ex. Kay Robertson Collection.
A collector's guide to Cobalt, USA: its geology, mining history and notable minerals, illustrated with the 32 specimens documented from this locality on EarthWonders.
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