This specimen features vivid chalcopyrite crystals prominently perched on a matrix of white calcite from the renowned Madan Mine in Bulgaria. Measuring 9 x 6 x 8 cm, it showcases the metallic luster and brassy gold coloration of chalcopyrite contrasted against the smooth, translucent calcite. Ideal for collectors and mineralogists, this piece offers both aesthetic appeal and geological significance, representing the unique mineralogy of the Rhodope region.
