Cuprobismutite from the Clara Mine, Black Forest, Germany – micromount as unique piece
This micromount specimen shows Cuprobismutite from the Clara Mine, Black Forest, Germany. The piece presents a typical metallic grey to silvery appearance with a fine fibrous to compact structure. Reddish brown weathering traces add additional color accents and give the specimen a natural, lively look.
The surface appears dense and slightly shimmering, with the mineral structure expressed in fine intergrown areas. Overall, the specimen shows the characteristic appearance of this rare copper bismuth sulfide, especially through its structure and metallic luster.
Geology & Origin
Cuprobismutite is a rare copper bismuth sulfide mineral that forms in hydrothermal deposits. It develops under moderate to low temperature conditions and is often associated with other sulfide ores.
The Clara Mine in the Black Forest is one of the most famous mineral localities in Germany and is internationally known for its exceptional diversity of rare minerals. Collectors especially value this locality for its wide range of uncommon and well developed species.