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Leaders of states in the U.S. which have significant mineral deposits often create a state mineral, rock, stone or gemstone to promote interest in their natural resources, history, tourism, etc.
Download as PDF; Printable version ... Pages in category "Magnesium minerals" The following 185 pages are in this category, out of 185 total. This list may not ...
Magnesium can also be toxic to plants, although this is typically seen only in drought conditions. [47] [48] Space-filling model of the chlorophyll a molecule, with the magnesium ion (bright-green) visible at the center of the chlorin group. In animals, magnesium deficiency (hypomagnesemia) is seen when the environmental availability of ...
Magnesium reacted with an alkyl halide gives a Grignard reagent, which is a very useful tool for preparing alcohols. Magnesium salts are included in various foods, fertilizers (magnesium is a component of chlorophyll), and microbe culture media. Magnesium sulfite is used in the manufacture of paper (sulfite process).
The two seawater magnesium plants, in Texas and Norway, provided more than half the world's primary magnesium through the 1950s and 1960s. As of 2014, the only producer of primary magnesium metal in the United States was U.S. Magnesium LLC, which extracted the metal from surface brine of the Great Salt Lake, at its plant in Rowley, Utah.
Magnesium status may be assessed by measuring serum and erythrocyte magnesium concentrations coupled with urinary and fecal magnesium content, but intravenous magnesium loading tests are more accurate and practical. [116] A retention of 20% or more of the injected amount indicates deficiency. [117]
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Magnesium oxide (Mg O), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium (see also oxide). It has an empirical formula of MgO and consists of a lattice of Mg 2+ ions and O 2− ions held together by ionic bonding .