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Topaz is a rare silicate mineral with a chemical composition of Al 2 SiO 4 (F,OH) 2. It is best known for being these four things: one of the most popular colored stones. number "8" in the Mohs Hardness Scale. a birthstone for the month of November. a gemstone of many colors.
The typical topaz is wine, yellow, pale gray, reddish-orange, or blue brown. It can also be made white, pale green, blue, gold, or pink (rare). Orange topaz, also known as precious topaz, is the traditional November birthstone, the symbol of friendship, and the state gemstone for the US state of Utah. [5]
Topaz Description. This selection of gems from Ouro Prêto, Brazil, and Russia's Ural Mountains, displays the golden orange to pinkish red color range of precious topaz. The gems range from 7.61 to 14.33 carats in size. Many consumers know topaz as simply an inexpensive blue gem.
Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al2SiO4 (F, OH)2. It is used as a gemstone in jewelry and other adornments. Common topaz in its natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange.
Nov 1, 2023 · Topaz has been known as a powerful stone throughout the ages, one that was linked with attracting love and fortune. It is also mentioned in the Bible, and is one of the twelve gemstones adorning the breastplate of Aaron. Having first been discovered over 2,500 years ago, Topaz has a rich tapestry of legend running throughout its story.
Mar 8, 2024 · Topaz is an aluminum silicate containing fluorine and has a chemical formula of Al 2 (F,OH) 2 SiO 4. It is formed by fluorine-bearing vapours given off during the last stages of the crystallization of igneous rocks. It typically occurs in cavities in rhyolites and granite, in pegmatite dikes, and in high-temperature veins.
07/12/22. Read time. 2 minutes. Topaz. Alabaschka Murzinka, Urals, Russia. 7.5 x 7 x 4.2 cm. Registered 1996. D.50715. Albert Chapman Collection. Image: Stuart Humphreys© Australian Museum. This is a ‘Rembrandt of the mineral world’ – one of the world’s finest mineral specimens.
