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Well-formed, shiny pyrite stalactites associated with a few barite flakes.
7.9 x 2.9 x 2.7 cm
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White barite pompom of about 2 cm diameter, in perfect...
Plate composed of bournonite crystals in cogwheels and...
Bournonite in a notched wheel, naturally patinated with slight...
An unusual piece for the Malines mine: on the front, the...