Calcite (GEM penetration twin) (ex David Burgess Collection)

Item Description

Dal'negorsk Calcites are iconic, and some of the most recognized and fine quality specimens from the region. This piece is a fantastic example of said material featuring a nearly 100% GEM quality, sharp, well-formed, interpenetration twin of Calcite with a few smaller accenting Calcites of equal quality on minor matrix. The main twin is almost what I would call "optic"-grade, as it's almost completely colorless throughout. Overall, the piece is in great shape, though there are a few nicks here and there. Fine old classic material, and not nearly as easy to find on the market as it was 15 years ago. From the worldwide collection of David Burgess (1951-2016). David was a prolific species collector from Newington, Connecticut, and the namesake for the extremely rare cobalt arsenate species Burgessite, which he discovered.