Fire Opal Smoky Quartz Necklaces in 14K Gold

Mexican fire opals are named for their uniform flaming orange or cherry red body color. They are always very brightly colored, and can be a little bit cloudy to almost perfectly transparent. Transparent specimens have a good luster. Like the traditional opal, fire opals can occasionally display signs of iridescence in very bright light. Fire opals have a very low density, lower than that of glass, with which it is sometimes confused. Fire opals, like other opals, are relatively hard, rating a 5.5 to 6.5 on the hardness scale.... learn more

Smoky quartz is the National Gem of Scotland and has been considered a sacred stone there for a long time, a belief dating back to the Druids. The stone is the birthstone for Scorpios. Smoky quartz is one of the rare brown gemstones. Other rare brown gemstones are topaz, black beryl and brown corundum.... learn more