Topaz 4mm Coin Faceted AA Grade - 15-16 inch latest-7x10TC It is sometimes used for

It is sometimes used for scalpel blades in cardiac surgery

It sometimes features dark brown to black dendritic inclusions that branch like tiny tree limbs through the stone

2-3 large ranging 20-30mm

iron or manganese imp

naturally occurring mineral composed of pure carbon

Topaz 4mm Coin Faceted AA Grade - 15-16 inch latest-7x10TC It is sometimes used forTopaz 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