Semi-precious minerals – Gallery Ametrine sheets Top geme quality preformed ametrines Amethyst crystal group 17 kg Ametrine cathedral crystal Ametrine crystal group Ametrine crystal group Ametrine women head in the rock Bi color citrine with back carving Copper after aragonite corocoro la paz Copper ludlamite paravauxite bolivia Ice bird on smokey quartz matrix Phantom ametrine in quartz Phosphophyllite cluster potosi Top amethyst crystal group 80 kg Top ametrine candle crystal Top ametrine crystal Top ametrine crystal group 18 kg Top ametrine crystal group dimension to see Top ametrine rough crystal Top ametrine skeleton crystal Top ametrine skeleton crystal Top ametrine skeleton crystal Top gem quality ametrine crystal Vivianite cluster brazil Vivianite cluster brazil Vivianite cluster brazil Vivianite huanuni Vivianite huanuni