Materials
Topaz
Mineral
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A silicate mineral of aluminum and fluorine used as a gemstone, colorless in its natural state but turned pale blue, golden brown or yellow orange by trace impurities and routinely treated with heat or radiation for deeper colors. It is one of the hardest naturally occurring minerals and defines value 8 on the Mohs hardness scale.
Facts
Formation ClassNesosilicate, forming in granitic pegmatites, rhyolite gas cavities and high-temperature hydrothermal veins. 1 Chemical Formula Hardness (Mohs)The defining mineral for 8 on the Mohs scale; its own reference article states this in the infobox rather than in prose. Cross-Tradition Connections
Associated With
Topaz is the defining mineral for 8 on the Mohs scale.
In Discipline
Sources
1. Topaz (Wikipedia)
Wikimedia FoundationLead section and infobox, Mohs scale hardnessQuote, Lead section and infobox, Mohs scale hardness
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. Infobox: 8 (defining mineral).
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