Very Rare Big Quartz Crystals Fully Cover with Iron Oxide from famous Laki Mine. Size: 19 X 16 cm.Each specimen in our store is unique and 100% natural. Every specimen in our store is valuable, and they are an investment. We take care when packaging your items, for free! THANK YOU FOR VISITING OUR STORE! We have a small family company that collects only high quality specimens from different places, mainly from Bulgaria. We have the best specimens like Galena (Spinel Law Twins, Twinned Galena, Cubic Galena, Skeletal Galena), Sphalerite (GEM Sphalerite var Cleiophane, Black Sphalerite), Pyrite (Fool's Gold, Iron Pyrite, Iron Sulfide), Quartz (Milky Quartz, Clear Quartz, Quartz Japan-law twin), ORPHEUS AGATE (unique in the world). Chalcopyrite, Calcite (Manganoan Calcite, Flourescent Minerals), Baryte (Yellow Baryte, White Baryte), and many more. Thank you very much for your support.