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Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula Al 2 Si O 4 (F, OH) 2. It is used as a gemstone in jewelry and other adornments. Common topaz in its …

Topaz is a precious stone, typically colorless, yellow & is Allochromatic, which means that its color is caused by defects in its crystal structure.

Topaz is one of the Mohs hardness minerals and has been an important gemstone for thousands of years. It occurs in a wide range of colors, many of which are produced by treatments.

Mar 5, 2025 · Discover the different types of topaz, including their unique properties, distinct looks, and special characteristics that set them apart from each other.

Detailed gem and jewelry information guide about the gemstone topaz: information & pictures.

Jul 1, 2024 · Topaz is a mineral that belongs to the orthosilicate group. It has a hardness of 8 on the Mohs scale, making it quite durable and suitable for various jewelry applications. Its …