Apatite is a group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH−, F− and Cl− ion, respectively...

Lead apatite is a generic name for apatite-structure materials that contain lead as the divalent cation. A Copper-doped lead-apatite has been proposed...

which— compared to pure lead-apatite (Pb10(PO4)6O): 5 — approximately one quarter of Pb(II) ions in position 2 of the apatite structure are replaced by Cu(II)...

hydroxylapatite) (Hap, HAp, or HA) is a naturally occurring mineral form of calcium apatite with the formula Ca5(PO4)3(OH), often written Ca10(PO4)6(OH)2 to denote...

minerals over a very wide geological range (typically 0.1 Ma to 2000 Ma). Apatite, sphene, zircon, micas and volcanic glass typically contain enough uranium...

as an open pit. The operation was sold to Yara in 2007. The Siilinjärvi apatite mine is the biggest open pit in Finland. Currently the mine comprises two...

Bone mineral (also called inorganic bone phase, bone salt, or bone apatite) is the inorganic component of bone tissue. It gives bones their compressive...

the country rock. Apatite is by far the main gangue mineral while other gangue minerals are tremolite-actinolite and calcite. Apatite is at places evenly...

Primary mineralogy is highly variable, but may include natrolite, sodalite, apatite, magnetite, barite, fluorite, ancylite group minerals, and other rare minerals...

scratch the given material. For example, if some material is scratched by apatite but not by fluorite, its hardness on the Mohs scale would be between 4...

occurring impurity in apatite generates hydrogen fluoride as a byproduct during the production of phosphoric acid, as apatite is digested by sulfuric...

Citrate is a vital component of bone, helping to regulate the size of apatite crystals. Because it is one of the stronger edible acids, the dominant...

IMA2008-009, 05 Alforsite, 05 Apatite*, 05 Apatite-(CaOH), 05 Apatite-(CaCl), 05 Apatite-(CaF), 05 Apatite-(SrOH), 05 Apatite-(CaOH)-M, Carbonate-fluorapatite...

albite, lepidolite, gem tourmaline, beryl, spodumene, amblygonite, topaz, apatite, and fluorite, which may partially replace some of the minerals in the...

mineral hydroxyapatite. Apatite is a hard, insoluble compound. Acid (H+), produced especially after a high-sugar meal, attacks the apatite: Ca5(PO4)3OH(s) +...

fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx "lime", which...

Nelsonite is an igneous rock primarily constituted of ilmenite and apatite, with anatase, chlorite, phosphosiderite, talc and/or wavellite appearing as...

driest. Reconstruction of tropical sea surface temperature from conodont apatite implies an average value of 30 °C (86 °F) in the Early Devonian. Early...

Visible banding in an apatite gemstone...

Tsavorite garnet on real matrix of silvery black graphite and a minor blue apatite General Category Nesosilicate Formula (repeating unit) Ca3Al2Si3O12 Crystal...

Vanadinite is a mineral belonging to the apatite group of phosphates, with the chemical formula Pb5(VO4)3Cl. It is one of the main industrial ores of...

S2CID 129179725. Harlov, D.E.; et al. (2002). "Apatite–monazite relations in the Kiirunavaara magnetite–apatite ore, northern Sweden". Chemical Geology. 191...

Nigel C.; Popov, Leonid E.; Fischer, Woodward W. (1 March 2018). "A paired apatite and calcite clumped isotope thermometry approach to estimating Cambro-Ordovician...

v t e Mohs scale of mineral hardness 1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond...

polysaccharides), in which other materials are embedded: chitin in the periostracum; apatite containing calcium phosphate in the primary biomineralized layer; and a...

v t e Mohs scale of mineral hardness 1 Talc 2 Gypsum 3 Calcite 4 Fluorite 5 Apatite 6 Orthoclase 7 Quartz 8 Topaz 9 Corundum 10 Diamond...

peridot, tourmaline, topaz, garnet, red spinal, pargasite, diopside, sphene, apatite, azurite, rose quartz, and agate. In Swat, pale green to green coloured...

phosphate, in a chemical arrangement known as bone mineral, a form of calcium apatite. It is the mineralization that gives bones rigidity. Bone is actively constructed...

The Särkijärvi pit of the apatite mine in Siilinjärvi, Finland...

The acid is also a by-product of the production of phosphoric acid from apatite and fluoroapatite. Digestion of the mineral with sulfuric acid at elevated...