Hubnerite (classic Colorado) Kay Robertson Coll.

Item Description

The small and exctinct Adams Mine of Colorado has produced some of the finest US hubnerites. This is an aesthetic two-sided spray of pretty mahogany-colored blades with very high metallic luster. The top tier blades have contacted terminations with the middle and lower tier blades being pristine. A very fine and rich old Colorado classic from the Kay Robertson Collection # 4730. Kay is a prominent California collector, who specialized in European classics (see the article in the March-April, 2007 Mineralogical Record). She acquired this piece in the 1960s.