Imperial Topaz 8-9mm Rondelle Banded - 15-16 Inch R1435 The name "biotite" is used

The name "biotite" is used because these minerals generally cannot be distinguished without optical

a microscopic protozoa with a silica shell

” the other being Nephrite

as a gemstone that is cut into many shapes and often given a high polish

One of the best-known physical properties of topaz is its hardness

Imperial Topaz 8-9mm Rondelle Banded - 15-16 Inch R1435 The name "biotite" is usedTopaz 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