Fire Opal Tanzanite Aquamarine 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

Tanzanite is a member of the mineral family zoisite, which has been known about for nearly two centuries. Zoisite occurs in a number of varieties, the most sought after being tanzanite. This mineral family was named zoisite in 1805, some time after the Austrian scientist Baron Siegmund Zois von Edelstein (1747-1819) had identified the mineral in the Saualpe Mountains of Carintha, Austria. Siegmund Zois von Edelstein operated an iron mine in the Karawanken Mountains in Karnten Austria and encountered the mineral on his own property. Centuries later, the discovery of a bright blue transparent variety that we now know as tanzanite, created a lot of excitement in the specialist world.... learn more

Aquamarine is the March birthstone. The seawater color of the mineral has given this gemstone the name "aquamarine," derived from the Latin word for seawater. The term "aquamarine" was used in an essential gemological work by Anselmus de Boodt, published in 1609. Aquamarine is a valued gem with a long history. In the 19th century, sea green varieties of the stone were the most popular. Today, the more blue the color, the more valuable the stone. In 1910, the largest aquamarine was found in Brazil. It weighed 243 pounds. It was then cut into smaller gems that weighed more than 200,000 carats.... learn more