A superb specimen of Calcite on Quartz from the fabulous Shangbao mine in Hunan, China. It features a large mound of sharp and shiny Quartz crystals which is hosting two generations of lustrous Calcite. The Calcites exhibit two distinct crystal habits as pictured. In excellent condition. Shangbao mine specimens of this caliber are very uncommon and highly desired by collectors of both fine Fluorites and Chinese multi-minerals.