Topaz 4mm Coin Faceted AA Grade - 15-16 inch lhb-60 The addition of the rhodium

The addition of the rhodium plating not only protects these from oxidation but also highlights the Widmanstätten pattern

It is one of the most rare and sought after forms of Agate

leafy patterns

It is often thought of as an all to black stone

Topaz 4mm Coin Faceted AA Grade - 15-16 inch lhb-60 The addition of the rhodiumTopaz 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