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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 natural state is colorless, though trace element impurities can make it pale blue or golden brown to yellow-orange. [7]
Topaz is a rare silicate mineral with a hardness of 8 and a wide range of natural and treated colors. Learn about its physical properties, geologic occurrence, sources, treatments, and uses as a gemstone and birthstone.
Learn about the mineral topaz, a popular gemstone that occurs in many colors and shapes. Find out its chemical formula, crystal system, localities, varieties, and how to distinguish it from other minerals.
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 distinctive vitreous (glass-like) luster contributes to its appeal as a gemstone.
Facts. Mineral: Topaz. Chemistry: Al 2 (F,OH) 2 SiO 4. Color: Yellow, orange, brown, pink to red to purple red, blue, light green and colorless. Refractive index: 1.619 to 1.627. Birefringence: 0.008 to 0.010. Specific gravity: 3.53. Mohs Hardness: 8. Treatments.
Topaz is a silicate mineral that forms in various colours and can be heat-treated to produce pink or red hues. Learn about its description, distribution, and fire phenomenon, as well as its association with chrysolite and peridot.
Topaz is a hard and durable gemstone that can be found in many colors, from white to pink to blue. Learn about its chemical formula, crystal system, varieties, treatments, sources, and similar gemstones.
