Proustite

$4,000.00

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

Specimens of larger, visible Proustite, are extremely rare from Měděnec (Kupferberg) in the Krušné Hory Mts, Ústí Region, Bohemia, Czechia. This small cabinet-sized specimen is a cracker, featuring a line of at least 11 composite Proustite crystals along the surface of a bed of bladed, grey, Pyrite-included Calcite crystals on top of a thicker (1.5 to 2.5 cm) layer of massive grey to pinkish Calcite with inclusions of Proustite and Pyrite. The Proustite crystals, which reach up to 7 mm in length, are seed-like in shape, but composed of many stepped, or aligned crystals. They are opaque and deep purple-red in colour with a dull resinous surface lustre. A very distinctive piece, with a very unusual crystal habit of Proustite. Ex Martin Bohaty Collection.