What minerals are found with apatite?
What minerals are found with apatite?
Apatite is a group of phosphate minerals, usually referring to hydroxyapatite, fluorapatite and chlorapatite, with high concentrations of OH−, F− and Cl− ions, respectively, in the crystal.
How much apatite is mined each year?
High-grade phosphate rock, the only commercial source of phosphorus, contains at least 10 percent elemental phosphorus in the form of apatite. As the base of the 25-billion-dollar-per-year global mining industry, more than 255 million tonnes of phosphate rock are mined annually from open pits.
What is the mineral apatite used for?
Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals.
What is the formula of apatite mineral?
Apatite Mineral Data
| General Apatite Information | |
|---|---|
| Chemical Formula: | Ca5(PO4)3(OH,F,Cl) |
| Calculated Properties of Apatite | |
| Electron Density: | Bulk Density (Electron Density)=3.17 gm/cc note: Specific Gravity of Apatite =3.19 gm/cc. |
| Fermion Index: | Fermion Index = 0.0007174973 Boson Index = 0.9992825027 |
Which test will correctly identify the apatite?
The test is useful because most specimens of a given mineral are very close to the same hardness. This makes hardness a reliable diagnostic property for most minerals….What is Mohs Hardness Scale?
| Mohs Hardness Scale | |
|---|---|
| Mineral | Hardness |
| Apatite | 5 |
| Orthoclase | 6 |
| Quartz | 7 |
Is Blue apatite expensive?
Blue apatite is also sometimes heat treated to enhance its color. Because apatite is quite commonly found and not expensive, synthetic versions are rare. While it is hard to find imitation apatite, note that sometimes apatite can be used to imitate other more expensive gemstones.
What products uses fluorite?
| Physical Properties of Fluorite | |
|---|---|
| Chemical Classification | Halide |
| Crystal System | Isometric |
| Uses | Numerous uses in the metallurgical, ceramics, and chemical industries. A source of fluorine, hydrofluoric acid, metallurgical flux. High-clarity pieces are used to make lenses for microscopes, telescopes, and cameras. |
What is the chemical formula of kaolinite?
Al2O3 2SiO2
Kaolinite is a clay mineral of chemical formula Al2O3 2SiO2·2H2O that has a structure of 1:1 uncharged dioctahedral layer where each layer consists of single silica tetrahedral sheet and single alumina octahedral sheet [123,124].
What are 6 different tests that are used to identify minerals?
Geologists use the following tests to distinguish minerals and the rocks they make: hardness, color, streak, luster, cleavage and chemical reaction.
Where does the mineral apatite get its name?
Apatite is now a group name for a series of related minerals. Common world wide. Link to MinDat.org Location Data. Named in 1788 from the Greek apatao – “I am misleading.” Comments: Pink, colliform carbonate-fluorapatite on matrix. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Size Not Given.
Where can I find apatite crystals in Europe?
Important Apatite localities in Europe include Ehrenfriedersdorf, in the Erzgebirge, Saxony, Germany, a classic locality which is also the type locality for this mineral. Panasqueira, Portugal, is well-known for its thick and gemmy tabular Apatite crystals.
Which is the most important place for apatite?
As this mineral is very common, only the most important of Apatite localities are described here. Important Apatite localities in Europe include Ehrenfriedersdorf, in the Erzgebirge, Saxony, Germany, a classic locality which is also the type locality for this mineral.
Which is more common Apatite or hydroxylapatite?
“Apatite” is a field term for unidentified calcium phosphate members of the apatite group. Most “apatite” is fluorapatite, whereas hydroxylapatite is much less common and chlorapatite is very rare.
