Bournonite

Machacamarca Mine, near Colavi, Dept. Potosi, Bolivia
Miniature, 4.7 x 4.3 x 2.7 cm
Start Time: 05/17/2012 6:45:00 pm (CDT)
End Time: 05/24/2012 6:49:58 pm (CDT)
Auction Closed

Item Description

There was a find of this relatively rare copper sulfosalt in 2009 at Machacamarca, and this piece is definitely one of the more attractive specimens to come out in this size range. This piece hosts a few sharp, silvery-grey color, tabular crystals with metallic luster and excellent form sitting on an oxidized matrix. The largest crystal measures 1.3 cm on edge. This is an attractive specimen (especially for this mine), and displays very well. There was only one pocket from this mine that produced anything wortwhile last year as far as I know. From what I have been told, this mine is not producing these specimens at the moment, and the last time the Bournonites stopped coming out, it took three years for the miners to find more.

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