Combination of Galena, Blende, Chalcopyrite, Calcite Bulgarie

Very nice geode made of a combination of galena, blende, chalcopyrite and calcite extracted from the 9 September Madan Bulgaria mine (old piece from 1991).

Dimensions of the stone: L: 136mm x W: 119mm x H : 95mm.

Weight: 1900g.

The "9 September" mine:

Also known as the Septemvri mine, is located in Bulgaria's Madan mining district in the Rhodope Mountains. The mine is renowned for its production of minerals such as galena and sphalerite, which are highly prized by collectors.

The "9 September" mine was intensively exploited during the 20th century and played an important role in the local economy thanks to the extraction of lead, zinc and sometimes silver. Today, although industrial production has ceased, the mine has been transformed into a tourist attraction. A mining museum has been opened, allowing visitors to learn about the region's mining history and see equipment and facilities that are still in operation.