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. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/
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. Classification
Crystal System Classification Connections
Associated With
Topaz is the defining mineral for 8 on the Mohs scale.
Source Topaz (Wikipedia)
Topaz named among the characteristic minerals of complex (rare-element) pegmatites.
Source Pegmatite (Wikipedia)
Classified As
Entity-backed identity for the material classification this material already carries as an enum fact, pointing at the class subcategory of the same name. The enum fact itself stays on the entity unchanged.
Crystallizes In System
Entity-backed identity for the crystal-system enum value this material already carries, resolved to an earth concept by an explicit value-to-entity map (phase 3 bucket conversion, docs\design_entity_backed_browse_buckets_20260928.md). The crystal-system fact itself stays on the material unchanged.
In Discipline
In the Other Atlases
- Also in Divinity Atlas: Yellow Topaz, mineral species of there.
Sources
1. Topaz (Wikipedia)
Wikimedia FoundationLead 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).
Entity classification (SubLabel)
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 o
Topaz (Wikipedia), body text
It has the orthorhombic crystal system and a dipyramidial crystal class
Topaz, live entity-description
A silicate mineral of aluminum and fluorine used as a gemstone
View the Source Wikidata: Topaz
Wikidata Q134985Quote, Wikidata Q134985
P279 subclass chain verified to reach rock (Q8063) or mineral (Q7946) within a few hops; identified via Wikipedia pageprops (article title match), PlaybookNote 38526.
Pegmatite (Wikipedia)
Wikimedia FoundationAssociated With: Pegmatite, Complex pegmatite mineralogy sectionQuote, Associated With: Pegmatite, Complex pegmatite mineralogy section
These complex pegmatites contain unusual minerals of these elements, such as beryl, spodumene, lepidolite, amblygonite, topaz, apatite, fluorite, tourmaline.
Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.