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 as a room-temperature superconductor. A number of minerals are known. All have a hexagonal crystal structure.
Leadapatite is a generic name for apatite-structure materials that contain lead as the divalent cation. A Copper-doped lead-apatite has been proposed...
Apatite is a group of phosphate minerals, usually hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH−, F− and Cl− ion, respectively...
powder-blue caledonite round out this very rich lead ore specimen from an old Leadhills mine. Leadapatite List of minerals Warr, L.N. (2021). "IMA–CNMNC...
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...
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...
discovery of LK-99, a supposed room-temperature superconductor based on leadapatite doped with copper. As evidence, they published conductivity measurements...
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...
hydrothermal processes, igneous geology and ore genesis. (U-Th)/He dating of apatite as a thermal history tool USGS: Helium Discharge at Mammoth Mountain Fumarole...
and meteorites are best used. Older materials can be dated using zircon, apatite, titanite, epidote and garnet which have a variable amount of uranium content...
over geologic time and weathering of phosphate containing rock such as apatite. Furthermore, phosphorus tends to be a limiting nutrient in aquatic ecosystems...
contain other anions in addition to phosphate: Hydroxyapatite Ca5(PO4)3(OH) Apatite Ca10(PO4)6(OH,F,Cl,Br)2 Tetracalcium phosphate (CAS#1306-01-0): Ca4(PO4)2O...
polysaccharides), in which other materials are embedded: chitin in the periostracum; apatite containing calcium phosphate in the primary biomineralized layer; and a...
Mimetite is a lead arsenate chloride mineral (Pb5(AsO4)3Cl) which forms as a secondary mineral in lead deposits, usually by the oxidation of galena and...
hexagonal colorless crystal in the chemical class phosphates and the group apatite. It is found in certain parts of central California, primarily Fresno,...
fossilised remnants of early sea life; gypsum, anhydrite, fluorite, and apatite are also sources of calcium. The name derives from Latin calx "lime", which...
mineral hydroxyapatite. Apatite is a hard, insoluble compound. Acid (H+), produced especially after a high-sugar meal, attacks the apatite: Ca5(PO4)3OH(s) +...
fluoride-containing minerals that also contain silicates. Specifically, apatite and fluorapatite are treated with sulfuric acid to give phosphoric acid...
Prolonged increased alkalinity can lead to the formation of crystals of struvite, calcium carbonate, and/or apatite, which can result in struvite kidney...
within the host crystal structure. The inclusions are typically zircon, apatite, or titanite which can accommodate uranium or thorium within their crystal...
magnetite, ilmenite, or ulvospinel. Some sulfides and phosphates (mainly apatite) may also be present. Alkali feldspar granites generally occur with other...
Plastic surgery notes additional soft tissue fillers like calcium hydroxy-apatite and polymethylmethacrylate. The advantage of using these is that they are...
materials which chemically convert to mineralised bone (hydroxy-carbonate-apatite) in physiological fluid. Bismuth doped phosphosilicate glasses are being...
used as a gemstone. List of minerals Apatite, fluoro-phosphate of calcium Pyromorphite, chloro-phosphate of lead Turquoise, a hydrated phosphate of copper...
cryptocrystalline masses (grain sizes < 1 μm) referred to as collophane-sedimentary apatite deposits of uncertain origin. It is also present as hydroxyapatite Ca5(PO4)3OH...
"Micro-environmental controls on biomineralization: superficial processes of apatite and calcite precipitation in Quaternary soils, Roussillon, France". Sedimentology...
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