A beautiful double-calcite on quartz from a one-off pocket at the Borieva Mine in Bulgaria! This pocket was discovered in late July of 2017. There are two large calcite crystals growing on top of each other forming a curved chain. In back of the calcite crystals is a bed of finger-like quartz crystals with green chlorite inclusions. The scalenohedral calcite crystals are yellow-amber color, and are comprised of hundreds of flattened, stacked rhombohedrons. A highly aesthetic, beautiful, and unique specimen! Very good condition with no significant damage.