Blue Gems: 10 Night-Sky-Colored Favorites

Blue gems range from royal and cobalt blue to midnight blue and deep violet-blue, offering some of the most dramatic colors found in the mineral world. Some resemble a night sky or outer space, especially when their dark bodies contain glittering pyrite, chatoyancy or flashes of spectral color. These rich hues make blue gems popular […] The post Blue Gems: 10 Night-Sky-Colored Favorites first…