A group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, distinguished by high concentrations of hydroxide, fluoride or chloride ions in the crystal. It is the defining mineral for value 5 on the Mohs hardness scale, and its hydroxyapatite endmember is the main mineral of tooth enamel and bone. 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 ClassPhosphate mineral, a common accessory mineral across igneous, metamorphic and sedimentary rocks and the principal structural mineral of vertebrate bone and tooth enamel. 1 Chemical FormulaCa10(PO4)6(OH,F,Cl)2 (admixture of the three most common endmembers) 1 Hardness (Mohs) Classification
Crystal System Classification UseSoil Amendment or Fertilizer 1 Connections
Associated With
Apatite is the defining mineral for 5 on the Mohs scale.
Source Apatite (Wikipedia)
Apatite 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
Apatite is a standard mineral used in fission-track and (U-Th)/He geochronology dating methods, beyond the automatic in-discipline->Mineralogy edge.
Source Apatite (Wikipedia)
Source Apatite (Wikipedia)
Sources
1. Apatite (Wikipedia)
Wikimedia FoundationLead section and article body
Apatite is the defining mineral for 5 on the Mohs scale.
Entity classification (SubLabel)
A group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, distinguished by high concentrations of hydroxide, fluoride or chloride ions in the crystal. It is the defining mi
Apatite (Wikipedia), infobox
Crystal system: Hexagonal
Apatite (Wikipedia), body text
The primary use of apatite is as a source of phosphate in the manufacture of fertilizer
In Discipline: Geochronology, Applications section
Fission tracks in apatite are commonly used to determine the thermal histories of orogenic belts and of sediments in sedimentary basins.
View the Source Wikidata: Apatite
Wikidata Q178397Quote, Wikidata Q178397
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.
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