To soil, or change the appearance of, especially by an alternation induced by the air, or by dust, or the like; to diminish, dull, or destroy the luster of; to sully; as, to tarnish a metal; to tarnish gilding; to tarnish the purity of color.
Property in certain minerals that cause them to discolor when placed in certain environments. A famous example is Silver, which develops a yellowish-black coating on its surface when exposed to hydrogen sulfide (H2S), which is present in small quantities in the atmosphere.
It is the property in some minerals which causes them discolor if placed in certain environments. Silver is a good example that develops a yellowish-black coating on its surface after being exposed to hydrogen sulfide (H2S). In the atmosphere, H2S is present in small quantity.
A discoloration that can build on silverplate or sterling if left exposed to the air or if brought into contact with certain foods and chemicals. Can easily be prevented by everyday use or protective storage and is easily removed by commercial silver polishes.
A thin film that can discolor the surface of certain metals when they are oxidized by chemicals in their surroundings. For example, silver tarnishes when exposed to sulfur in the air. Copper oxidizes when exposed to moisture in the air. In most cases, tarnish can be removed by rubbing the piece with a commercial cleaner and a soft cloth.
Tarnish is the various degrees of surface discoloration of minerals or metals. Tarnishing is a mild, natural form of oxidation that is caused by a chemical variation of the surface molecules due to dust, dirt and/or exposure to air, especially air that contains traces of sulphurous fumes.
Tarnish is the term applied to metal that has discolored due to oxidation or corrosion. Sterling silver is very susceptible to tarnishing but can be cleaned easily with a soft cloth and cleaning products designed to clean metal. Never use toothpaste to clean jewelry as it is too abrasive and will result in fine scratches that dull the metal surface. See cleaning jewelry.
A dulled luster or finish caused by a thin deposit of a dirt which discolors the surface of metal and is easily removed. Also a reaction between metals and other chemicals which discolors the surface, particularly silver which reacts with sulfur. The silver sulfide can be removed with a proprietary cleaning product and gentle abrasion.
Tarnish is a layer of corrosion that develops over copper, brass, silver, aluminum as well as a degree of semi-reactive metals as they undergo oxidation. It is analogous to rust, but with a slower rate of occurrence. It is mainly caused by chemicals in the air such as sulphur.