topaz
Sign in to saveTopaz is a silicate mineral made of aluminum and fluorine with the chemical formula AlSiO(F, OH). 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. Topaz is often treated with heat or radiation to make it a deep blue, reddish-orange, pale green, pink, or purple.
AI overview
Topaz is a hard mineral containing aluminum and fluorine that is prized as a gemstone for jewelry and decorative items. While topaz occurs naturally in colorless, pale blue, or golden-brown forms, it is frequently treated with heat or radiation to produce deeper, more vibrant colors like deep blue, pink, or purple.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Mineral.system
- Orthorhombic
- Mineral.name
- Topaz
- Mineral.category
- Nesosilicate
- Mineral.boxbgcolor
- 8F573F
- Mineral.boxtextcolor
- FFFFFF
- Mineral.image
- Topaze, quartz fumé 1.jpg
- Mineral.imagesize
- 270px
- Mineral.caption
- Topaz crystal on white matrix
- Mineral.IMAsymbol
- Tpz
- Mineral.strunz
- 9.AF.35
- Mineral.class
- Dipyramidal (mmm)H–M symbol: (2/m 2/m 2/m)
- Mineral.symmetry
- Pbnm
- Mineral.unit cell
Article
10 sectionsContents
- Etymology
- History
- Gemstone
- Structure
- Characteristics
- Localities and occurrence
- Mining
- See also
- References
- External links
Topaz is a silicate mineral made of aluminum and fluorine with the chemical formula AlSiO(F, OH). 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. Topaz is often treated with heat or radiation to make it a deep blue, reddish-orange, pale green, pink, or purple.
Topaz is a nesosilicate mineral, and more specifically, an aluminosilicate mineral. It is one of the hardest naturally occurring minerals and has a relatively low index of refraction. It has the orthorhombic crystal system and a dipyramidial crystal class.