Topaasid
Topaasid, often referred to as topaz in English, is a silicate mineral with the chemical formula Al2SiO4(F,OH)2. It is known for its hardness, typically ranking 8 on the Mohs scale, making it a relatively durable gemstone. Topaz occurs in a variety of colors, including colorless, yellow, orange, pink, blue, and brown. The most common natural color is yellow or brown, but heated and irradiated specimens can produce vibrant blue and pink hues.
The mineral is found in igneous rocks, particularly in granite and rhyolite, and also in pegmatites and
Historically, topaz has been valued for its beauty and durability. It is used in jewelry, as well