Topaz Sky Blue 5mm Round - 8 Inch HPS4-Tucson The mines these stones are

The mines these stones are sourced from are primarily copper mines

cobalt or nickel

and typically appear in light yellow to green to blue to green to deep moss green

5 billion years ago

Topaz Sky Blue 5mm Round - 8 Inch HPS4-Tucson The mines these stones areTopaz is a rare silicate mineral and obtains much of its popularity from its beautiful colors and its status as a birthstone. Topaz occurs in a wide range of natural colors; however, most natural topaz is colorless. The most highly regarded colors are the reds and pinks, which receive their color from trace amounts of chromium. The name "topaz," and variants of the name in other languages, have been used for yellowish gemstones for at least two