Physics

About Silver Definition Silver is a soft, shiny, white metallic element that is found in many ores, especially together with copper, lead, and zinc. It…

Ethylene Oxide Definition Ethylene oxide is a colorless, odorless, gaseous, toxic, ring compound, C2H4O, usually obtained by the oxidation of ethylene: used chiefly in the…

Thionyl Chloride Definition Thionyl chloride is a moderately volatile colorless liquid with an unpleasant acrid odor. Boiling point 79°C. A lachrymator, highly corrosive and toxic.…

Zinc Chloride Definition Zinc chloride (ZnCl2) is a white, water-soluble crystalline compound used as a wood preservative, as a soldering flux, and for a variety…

Zinc Sulfide Definition Zinc sulfide is transparent and white in color. It is usually produced from waste materials, and it is also a by-product of…

About Zinc Definition Zinc is a shiny, bluish-white metallic element that is brittle at room temperature but is malleable when heated. It is a mineral…

Pyroxene Definition Pyroxene is any of a series of dark silicate minerals having the general chemical formula ABSi 2 O 6, where A is either…

Olivine Definition Olivine is a common mineral in the igneous rocks, such as basalt and gabbro that make up most of the Earth’s crust beneath…

Peridotite Definition Peridotite is a coarse-grained igneous rock that consists mainly of olivine and pyroxene. It is believed to be one of the main constituent…

Kimberlite Definition Kimberlite is a type of peridotite consisting of a fine-grained matrix of calcite and olivine and containing phenocrysts of olivine, garnet, and sometimes…

Diamond Definition Diamond is a form of pure carbon that occurs naturally as a clear, cubic crystal and is the hardest of all known minerals.…

Graphite Definition Graphite is a naturally occurring, steel-gray to black, crystalline form of carbon. It is the most stable form of carbon under standard conditions.…