|
|
| | TOURMALINE Basic information |
| Product Name: | TOURMALINE | | Synonyms: | TOURMALINE;Liquid anion liquid anion spray stock solution;Far infrared powder | | CAS: | 1317-93-7 | | MF: | | | MW: | 0 | | EINECS: | | | Product Categories: | | | Mol File: | Mol File | ![TOURMALINE Structure]() |
| | TOURMALINE Chemical Properties |
| Dielectric constant | 5.5（44℃） |
| | TOURMALINE Usage And Synthesis |
| Uses | tourmaline is used to increase product viscosity, this is a semiprecious stone. There is little clinical evidence supporting therapeutic claims associated with tourmaline. | | Definition | tourmaline: A group of minerals composed of complex cyclosilicates containing boron with the general formula NaR3 2+Al6B3Si6O27(H,F)4, where R = Fe2+, Mg, or (Al + Li). The crystals are trigonal, elongated, and variably coloured, the two ends of the crystals often having different colours. Tourmaline is used as a gemstone and because of its double refraction and piezoelectric properties is also used in polarizers and some pressure gauges. | | Agricultural Uses | Tourmaline, which is a borosilicate, is the main source of
boron found in soil. It is a mixture of silicates and borates
from where boron is extracted. It is available as a
complex cyclosilicate, Al6Y3Na[Si6O18](BO3)3(OHF)4,
with Y = Mg, Fe, Mn or Li. The rhombohedral system
has the shape of an elongated rod or needle type prism.
Tourmaline is used as a gemstone, and because of its
double refraction and piezo-electric properties, it is used
in polarizers and in some pressure gauges. The best
known variety of tourmaline is black tourmaline which
is rich in iron and is a common mineral in igneous and
metamorphic rocks.
Magnesium-rich tourmaline is called dravite.
Lithium-rich varieties are called elbaite. Ferruginous
varieties are called schorlite which is insoluble in water
and resistant to weathering and hence releases boron
slowly. |
| | TOURMALINE Preparation Products And Raw materials |
|