- Chalcostibite, Sphalerite, Dolomite, Galena
- Cabinet, 11.3 x 6.7 x 6.5 cm
- Boldut Mine, Cavnic (Kapnic; Kapnik), Maramures Co., Romania
Chalcostibite is a rare copper, antimony sulfosalt. This excellent and very showy, 3-dimensional cabinet combination piece from Cavnic, Romania features shiny, gray metallic blades and needles of chalcostibite clusters richly scattered on lustrous sphalerite crystals and associated with a rich, preferential coating of sparkly, light gray dolomite rhombs and a bit of galena. Chalcostibite was never common at Cavnic and this major discovery was made in 1990.