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Spectrolite exhibits a richer range of colors than other labradorites as for instance in Canada or Madagascar (which show mostly tones of blue-grey-green) and high labradorescence. [ 1 ] [ 2 ] Due to the unique colors mined in Finland , spectrolite has become a brand name for material mined only there.
Labradorite ((Ca, Na)(Al, Si) 4 O 8) is a calcium-enriched feldspar mineral first identified in Labrador, Canada, which can display an iridescent effect ().. Labradorite is an intermediate to calcic member of the plagioclase series.
A material property is an intensive property of a material, i.e., a physical property or chemical property that does not depend on the amount of the material. These quantitative properties may be used as a metric by which the benefits of one material versus another can be compared, thereby aiding in materials selection.
Other traditional uses include as an expectorant, astringent, and to treat bronchitis. [83] The essential oil of the plant has been used for centuries as a general tonic for colds and coughs, and to relieve congestion of the mucous membranes. Glycyrrhiza glabra: Licorice root: Purported uses include stomach ulcers, bronchitis, and sore throat. [84]
Cultivation may be traditional or may make use of conservation agriculture practices to maintain organic matter in the soil and to conserve water, for example with no-till farming systems. [91] In many medicinal and aromatic plants, plant characteristics vary widely with soil type and cropping strategy, so care is required to obtain ...
Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.
A typical protocol to isolate a pure chemical agent from natural origin is bioassay-guided fractionation, meaning step-by-step separation of extracted components based on differences in their physicochemical properties, and assessing the biological activity, followed by next round of separation and assaying.
For example, there is the belief among the Ibos of Nigeria that medicine men can implant something into a person from a distance to inflict sickness on them, in a process referred to asegba ogwu. To remove the malignant object, the intervention of a second medicine man is typically required, who then removes it by making an incision in the patient.