Descloizite with Calcite "casts" (ex John Arnaud Collection)

Item Description

Berg Aukus is world-renowned for its extraordinary Descloizite specimens. These pieces have set the standard of excellence for this zinc analogue of Mottramite. It is because of Berg Aukus that we know how good Descloizite crystals can actually get. This piece is filled with many tabular, sharp, lustrous, silvery brown color, layered crystal measuring up to 7 mm associated with buff colored Calcite that has apparently formed "casts" after an unknown preexisting on the underside. There is some slight damage on a few of the Descloizites, but it is still a notable specimen for its crystal quality. Valued at $1,800 for size, quality and the odd Calcite "casts". This piece comes from the collection of John Arnaud, formerly of Westcliffe, Colorado.