brucite

Gibbsite, Al(OH)3, is an important ore of aluminium and is one of three minerals that make up the rock bauxite. Bauxite is often thought of as a mineral but is really a rock composed of aluminium oxide and hydroxide minerals such as gibbsite, boehmite (AlO(OH)), and diaspore (HAlO2), as well as clays, silt, and iron oxides and hydroxides. Bauxite is a laterite, a rock formed from intense weathering environments such as foun ...

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Chlorite is a group of phyllosilicate minerals often classified as clays. Chlorites can be described by the following four endmembers based on the metals: Mg, Fe, Ni, and Mn. Clinochlore: (Mg5Al)(AlSi3)O10(OH)8 Chamosite: (Fe5Al)(AlSi3)O10(OH)8 Nimite: (Ni5Al)(AlSi3)O10(OH)8 Pennantite: (Mn,Al)6(Si ...

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• Chlorite group - Chlorite structure
• Chlorite group - Occurrence
• Chlorite group - Members of the Chlorite group:

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Greenschist Facies is determined by the particular T-P conditions required to metamorphose basalt to form the typical greenschist facies minerals chlorite, actinolite, and albite. Greenschist facies results from low temperature, moderate pressure metamorphism. Metamorphic conditions which create typical greenschist facies assemblages are called the Barrovian Facies Sequence, and the lower-pressure Abukuma Facies Series. Temperatures of approximately 400 to 500 °C and depths of about 8 to 50 kilometers are ...

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Greenschist, Greenschist - Petrology, Greenschist - Greenschist Facies, Greenschist - Reference

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Magnesium compounds, primarily magnesium oxide, are used mainly as refractory material in furnace linings for producing iron and steel, nonferrous metals, glass, and cement. Magnesium oxide and other compounds also are used in agricultural, chemical, and construction industries. As a metal, this element's principal use is as an alloying additive to aluminium with these aluminium-magnesium alloys being used mainly for beverage cans. Magnesium, in its purest form,is like aluminum, and is strong and light, so it is used in several high v ...

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Magnesium, Magnesium - Notable characteristics, Magnesium - Applications, Magnesium - History, Magnesium - Sources, Magnesium - Compounds in living organisms, Magnesium - Food sources, Magnesium - Isotopes, Magnesium - Precautions

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Clinoclore, penninite, and chamosite are the most common varieties. Several other sub-varieties have been described. The name chlorite is from the Greek chloros, meaning "green", in reference to its color. ...

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Chlorite group, Chlorite group - Chlorite structure, Chlorite group - Occurrence, Chlorite group - Members of the Chlorite group:

Read more here: » Chlorite group: Encyclopedia II - Chlorite group - Members of the Chlorite group:

Green vegetables such as spinach provide magnesium because the center of the chlorophyll molecule contains magnesium. Nuts, seeds, and some whole grains are also good sources of magnesium. Although magnesium is present in many foods, it usually occurs in small amounts. As with most nutrients, daily needs for magnesium cannot be met from a single food. Eating a wide variety of foods, including five servings of fruits and vegetables daily and plenty of whole grains, helps ...

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Magnesium, Magnesium - Notable characteristics, Magnesium - Applications, Magnesium - History, Magnesium - Sources, Magnesium - Compounds in living organisms, Magnesium - Food sources, Magnesium - Isotopes, Magnesium - Precautions

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Although magnesium is found in over 60 minerals, only dolomite, magnesite, brucite, carnallite, talc, and olivine are of commercial importance. In the United States this metal is principally obtained by electrolysis of fused magnesium chloride from brines, wells, and sea water: cathode: Mg2+ + 2e- → Mg anode: 2Cl- → Cl2 (gas) + 2e- The United States has traditionally been the major world supplier of this metal, supplying 45% of world product ...

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Magnesium, Magnesium - Notable characteristics, Magnesium - Applications, Magnesium - History, Magnesium - Sources, Magnesium - Compounds in living organisms, Magnesium - Food sources, Magnesium - Isotopes, Magnesium - Precautions

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The typical general formula is: (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6. This formula emphasises the structure of the group. Chlorites have a 2:1 sandwich structure (2:1 sandwich layer = tetrahedral-octahedral-tetrahedral = t-o-t...), this is often referred to as a talc layer. Unlike other 2:1 clay minerals, a chlorite's interlayer space (the space between each 2:1 sandwich filled by a cation) is comprised of (Mg2+, Fe3 ...

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Chlorite group, Chlorite group - Chlorite structure, Chlorite group - Occurrence, Chlorite group - Members of the Chlorite group:

Read more here: » Chlorite group: Encyclopedia II - Chlorite group - Chlorite structure

Magnesium-26 is a stable isotope that has found application in isotopic geology, similar to that of aluminium. Mg-26 is a radiogenic daughter product of Al-26, which has a half-life of 717000 years. Large enrichments of stable Mg-26 have been observed in the Ca-Al-rich inclusions of some carbonaceous chondrite meteorites. The anomalous abundance of Mg-26 is attributed to the decay of its parent Al-26 in the inclusions. Therefore, the meteorite must have formed in the solar nebula before the Al-26 had decayed. Hence, these fragments are among the oldest objects in the solar system and have preserved i ...

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Magnesium, Magnesium - Notable characteristics, Magnesium - Applications, Magnesium - History, Magnesium - Sources, Magnesium - Compounds in living organisms, Magnesium - Food sources, Magnesium - Isotopes, Magnesium - Precautions

Read more here: » Magnesium: Encyclopedia II - Magnesium - Isotopes