| Name: | Hydroxylapatite Hap |
| IMA Chemistry: | Ca5(PO4)3OH |
| Chemistry Elements: | The mineral Hydroxylapatite contains elements: Calcium (Ca) Phosphorus (P) Oxygen (O) Hydrogen (H) |
| Country of Type Locality: | Switzerland |
| Year First Published: | 1856 |
| IMA Status: | Approved,Renamed |
| Status Notes: | Named hydro-apatite: Damour A A (1856) Sur l'hydro-apatite, espèce minérale, Annales des Mines 10, 65-68 Renamed hydroxyapatite: Schaller W T (1912) Mineralogical notes, Series 2. Mineralogy of the French phosphorites, U.S. Geological Survey Bulletin 509, 89-100 Name changed from hydroxylapatite to apatite-(CaOH): Burke E A J (2008) Tidying up mineral names: an IMA-CNMNC scheme for suffixes, hyphens and diacritical marks, The Mineralogical Record 39, 131-135 Name changed from apatite-(CaOH) back to hydroxylapatite. In addition, apatite-CaOH)-M is renamed to hydroxylapatite-M and is defined as a monoclinic variant of hydroxylapatite and is not considered a distinct species: Pasero M, Kampf A R, Ferraris C, Pekov I V, Rakovan J R, White T J (2010) Nomenclature of the apatite supergroup minerals, European Journal of Mineralogy 22, 163-179 |
| Structural Group Name: | Apatite |
| Fleischer's Group Name: | apatite |
| Crystal Systems: | hexagonal |
| Oldest Known Age: | 2845 Million Years Ago |
| Mohs Hardness: | 5.0 |
| Diaphaneity: | 2.0 |
| Specific Gravity: | 3.17 |
| More Info: | Search Wikipedia: Hydroxylapatite (Wiki) Search Mindat: Hydroxylapatite Search Web Mineral DB: Hydroxylapatite |