Muscovite, the most common type of mica, is used for a variety of purposes, including in paints, cosmetics, construction materials and electronics. Before humans discovered how to make glass from quartz, most glass was made from thin sheets of muscovite, although this glass was not fully transparent.Know More
Muscovite has a very shiny, pearlescent luster, which is why ground muscovite is used to add a glittery look to cosmetics and paints. Sheets of muscovite mica also have very good insulating properties, so it is very commonly used in the construction of both building materials and electronic components. The crystalline structure of muscovite allows it to cleave into thin, uniform sheets that enable it to be used as window panes. However, there are only a few muscovite deposits in Eastern Europe and India that contain large enough crystals to be suitable for windows.
Muscovite is the only common mineral that can be perfectly cleaved into even, transparent sheets, making it quite easy to identify. It is one of the most common rock-forming minerals and can be found in sedimentary, igneous and metamorphic rocks. Muscovite is especially common in rocks of granitic origin and is only very rarely found in mafic igneous rocks.Learn more about Vitamins & Supplements
According to the Global Healing Center, grapefruit seed extract has been used throughout South American, Asian and European history as a powerful antiviral and antibacterial remedy. High in antioxidants and bioflavonoids, grapefruit seed extract is used as a natural immune system booster and stimulator. Because of grapefruit seed extract's antiviral, anti-mycotic and anti-protozoan capacities, it is also a powerful nontoxic disinfectant.Full Answer >
Indian frankincense, also known as boswellia and blessed thistle, is used for many conditions such as coughs, wounds, boils and promoting urine flow, according to WebMD. Boswellia use for these conditions is not based on scientific evidence.Full Answer >
Neem oil is used for dandruff, nourishing the skin, killing lice, clearing acne and treating nail fungus, according to alternative medicine expert Cathy Wong for About.com. It is also a natural insecticide, and the oil is a natural safeguard against insect bites. Neem oil is used to prepare cosmetics, according to Wikipedia.Full Answer >
Some of the earliest inventions of the Stone Age were simple hammerstones that showed evidence of battering, and stone cores, used for a variety of purposes, such as chopping. These stone cores could also produce sharp stone flakes when struck; the stone flakes were in turn used for cutting.Full Answer >