Arsenic - Wikipedia
Arsenic is a notoriously toxic heavy metal. It occurs naturally in many minerals, usually in combination with sulfur and metals, but also as a pure elemental crystal. It has various allotropes, but only the grey form, which has a metallic appearance, is important to industry.
Arsenic | Definition, Symbol, Uses, & Facts | Britannica
4 天之前 · Most commercial arsenic is recovered as a by-product of the smelting of copper, lead, cobalt, and gold ores. Only one stable isotope of arsenic, that of mass 75, occurs in nature. Among the artificial radioactive isotopes is one of mass 76, which has a half-life of 26.4 hours.
Arsenopyrite Mineral | Uses and Properties - Geology.com
Arsenopyrite is the primary ore of arsenic metal. The mineral contains approximately 46% arsenic by weight. Arsenic metal is used to produce a variety of alloys.
The Role of Arsenic in the Mining Industry - Society for Mining ...
Arsenic is a naturally occurring element commonly found in rocks, soils, water, air, and biological materials, and as an impurity in metallic ores and locally other mineral deposits.
The Facts on Arsenic | Dartmouth Toxic Metals
Arsenic has a particular affinity for sulfur and is often found joined to sulfur in ores – mixtures of minerals that are mined for profitable materials such as silver or copper. The common ore arsenopyrite, a rusty red rock, is a combination of arsenic with sulfur and iron.
Mining: Production and Control of Arsenic - Society for Mining ...
Arsenic is commonly found as an impurity in sulfide ores, and is produced commercially for use in pesticides, wood preservatives, metal alloys, and other technologies.
Arsenic Statistics and Information | U.S. Geological Survey - USGS.gov
Statistics and information on the worldwide supply of, demand for, and flow of the mineral commodity arsenic
Arsenic: The mineral native Arsenic information and pictures
Arsenic is an ore of the element arsenic, although most arsenic comes from arsenic compounds, which are much greater in abundance. Most Native Arsenic specimens are sold to collectors rather than used for industrial purposes. Arsenic as a commodity is largely used in the manufacturing of glass.
Arsenic - Minerals Education Coalition
Arsenic (As) is classed as a semi-metal, or metalloid. In nature it is commonly found as a metal in low levels in most soils and in higher concentrations associated with some copper, lead and zinc ores. The most common arsenic mineral is arsenopyrite, a compound of iron, arsenic, and sulfur.
2013年7月23日 · Arsenic is a naturally occurring element that is found in combination with either inorganic or organic substances to form many different compounds. Inorganic arsenic compounds are found in soils, sediments, and groundwater. These compounds occur either naturally or as a result of mining, ore smelting, and industrial use of arsenic.