andalusite การใช้

• At higher temperatures and pressures, andalusite may convert to sillimanite.
• In addition, the peraluminous minerals andalusite, cordierite and muscovite.
• The mineral gosseletite, a phase of manganian andalusite, is named after him.
• Unusual minerals found in the volcanics include andalusite, muscovite, sillimanite and tourmaline.
• Andalusite is trimorphic with kyanite and sillimanite, being the lower pressure mid temperature polymorph.
• South Africa possesses by far the largest portion of the world s known andalusite deposits.
• It occurs commonly as an alteration product of corundum, andalusite and other aluminous minerals.
• It's an important addition to the olivenite group, and isostructural with andalusite.
• Kyanite is triclinic, while andalusite and sillimanite are both orthorhombic and belong to the dipyramidal point group.
• Andalusite is an aluminium compound with high heat resistance used in furnaces, kilns and other industrial processes.
• These minerals, known as index minerals, include sillimanite, kyanite, staurolite, andalusite, and some garnet.
• "' Andalusite "'is an aluminium nesosilicate mineral with the chemical formula Al 2 SiO 5.
• This concentrated impurity deposit forms a re-entrant as it is absorbed by the growth of the andalusite porphyroblast.
• Kaolinite and dickite occur at lower temperatures whereas pyrophyllite and andalusite occur under high temperature conditions ( T > 300癈 ).
• Almandine occurs in metamorphic rocks like mica schists, associated with minerals such as staurolite, kyanite, andalusite, and others.
• This formation contains most of the world's reserves of minerals such as andalusite, chromium, fluorspar, platinum and vanadium.
• The andalusite produced will be priced at R20 per ton delivered in the truck at the station in bags, being production costs.
• Andalusite is stable at low pressure, kyanite is stable at high pressure but relatively low temperature and sillimanite is stable at high temperature.
• Brand new, in a profusion of striking colors such as Andalusite Blue and Rose Beige, they sold for as little as $ 435.
• The aluminosilicates are a group of three minerals  kyanite, andalusite, and sillimanite  which share the chemical formula Al 2 SiO 5.