Clausthalite with Calcite

$900.00

$40.00 shipping
Seller offers an extended return window of up to 30 days
Ships from USA

Crystal ClassicsFeatured

Tucson, Arizona, USA

7,543 for sale·132 sold

Clausthalite is a rare lead selenide (PbSe) and on this small cabinet specimen forms granular metallic patches sparsely distributed through a massive milky white Calcite matrix. The largest patch of Clausthalite measures 7 x 3 mm and all occurrences are metallic black, often with a slight iridescent blue sheen. The Calcite surrounding the Clausthalite is partly crystallised, displaying occasional prism faces. The Calcite covers the top surface of a black and earthy carmine basaltic looking matrix. A rather lovely old German label accompanies this specimen, written in a beautiful, yet now somewhat faint, copperplate hand.