Color : Colorless, white, yellow, orange, brown, pink, light purple, gray, light blue, greenish blue, green.
Hardness : 8

Topaz is mainly found in Brazil. Huge, transparent, gem-quality crystals are found there. Topaz has also come from the Ural Mountains of Russia, Mexico and the U.S. (Texas, Colorado and Utah). Topaz is often confused with the less valuable citrine. Topaz is a very hard gemstone but it can be split with a single blow, a trait it shares with diamond. Any "Topaz" labeled with a prefix name (such as Gold Topaz, Madeira Topaz, False Topaz, Brazilian Topaz, Bahia Topaz, and Citrine Topaz) is heat-treated Citrine. Topaz is a popular gemstone. All colors are fashioned into gemstones, and the yellow-brown ("Imperial") and pink varieties are the most valuable.