Dolomite is a carbonate mineral composed of calcium magnesium carbonate CaMg(CO3)2. The term is also used to describe the sedimentary carbonate rock dolostone. Dolostone (dolomite rock) is composed predominantly of the mineral dolomite with a stoichiometric ratio of 50% or greater content of magnesium replacing calcium, often as a result of diagenesis. Limestone that is partially replaced by dolomite is referred to as dolomitic limestone, or in old U.S.
DolomiteDolomite (rock)Magnesium mineralsTrigonal mineralsSedimentary rocksCalcium mineralsCarbonate mineralsDolomite group
The pyroxenes are a group of important rock-forming inosilicate minerals found in many igneous and metamorphic rocks. They share a common structure consisting of single chains of silica tetrahedra and they crystallize in the monoclinic and orthorhombic systems.
Salicylic acid (from Latin salix, willow tree, from the bark of which the substance used to be obtained) is a monohydroxybenzoic acid, a type of phenolic acid and a beta hydroxy acid. This colorless crystalline organic acid is widely used in organic synthesis and functions as a plant hormone. It is derived from the metabolism of salicin.
Salicylic acidPlant hormonesMonohydroxybenzoic acidsNon-steroidal anti-inflammatory drugsAnti-acne preparationsAntisepticsSalicylic acids
]] The Grignard reaction is an organometallic chemical reaction in which alkyl- or aryl-magnesium halides (Grignard reagents) add to a carbonyl group in an aldehyde or ketone. This reaction is an important tool for the formation of carbon–carbon bonds. The reaction of an organic halide with magnesium is not a Grignard reaction, but provides a Grignard reagent.
Grignard reactionCarbon-heteroatom bond forming reactionsReagents for organic chemistryChemical testsCarbon-carbon bond forming reactionsOrganometallic chemistryMagnesiumName reactionsOrganomagnesium compounds
Talc (derived from the Persian tālk, Arabic talk) is a mineral composed of hydrated magnesium silicate with the chemical formula H2Mg3(SiO3)4 or Mg3Si4O10(OH)2. In loose form, it is the widely used substance known as talcum powder. It occurs as foliated to fibrous masses, its crystals being so rare as to be almost unknown. It has a perfect basal cleavage, and the folia are non-elastic, although slightly flexible. It is the softest known mineral and listed as 1 on the Mohs hardness scale.
TalcClay minerals groupCosmetics chemicalsMagnesium mineralsSymbols of VermontPhyllosilicatesIARC Group 3 carcinogensExcipientsMonoclinic mineralsArabic words and phrases
Magnesium sulfate (or magnesium sulphate) is an inorganic salt containing magnesium, sulfur and oxygen, with the formula MgSO4. It is often encountered as the heptahydrate sulfate mineral epsomite (MgSO4·7H2O), commonly called Epsom salt, named for a bitter saline spring from the town of Epsom in Surrey, England, where the salt was produced from the springs that arise where the porous chalk of the North Downs meets non-porous London clay. Epsom salt occurs naturally as a pure mineral.
Magnesium sulfateLaxativesMagnesium compoundsWorld Health Organization essential medicinesSulfatesDesiccants
Spinel is the magnesium aluminium member of the larger spinel group of minerals. It has the formula MgAl2O4. Balas ruby is an old name for a rose-tinted variety.
SpinelGemstonesSpinel groupMagnesium mineralsAluminium mineralsCubic minerals
Dolostone or dolomite rock is a sedimentary carbonate rock that contains a high percentage of the mineral dolomite. In old U.S.G.S. publications it was referred to as magnesian limestone. Most dolostone formed as a magnesium replacement of limestone or lime mud prior to lithification. It is resistant to erosion and can either contain bedded layers or be unbedded. It is less soluble than limestone in weakly acidic groundwater, but it can still develop solution features over time.
DolostoneSedimentary rocksDolomite (rock)Dolomite group
Magnesium oxide, or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium. It has an empirical formula of MgO and consists of a lattice of Mg ions and O ions held together by ionic bonds. Magnesium hydroxide forms in the presence of water (MgO + H2O → Mg2), but it can be reversed by heating it to separate moisture.
Magnesium oxideOxidesCommon oxide glass componentsMagnesium mineralsMagnesium compoundsAntacidsRefractory materialsCeramic materialsOptical materials
An antacid is a substance which neutralizes stomach acidity.
Alloy wheels are automobile (car, motorcycle and truck) wheels which are made from an alloy of aluminium or magnesium. They are typically lighter for the same strength and provide better heat conduction and improved cosmetic appearance than "normal" wheels. The earliest light alloy wheels made were made of magnesium alloys. Although they lost favor for common vehicles they remained popular through the 1960s albeit in very limited numbers.
Alloy wheelWheelsAutomotive styling features
Magnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2. As a suspension in water, it is often called milk of magnesia because of its milk-like appearance. The solid mineral form of magnesium hydroxide is known as brucite. Magnesium hydroxide is a common component of antacids and laxatives; it interferes with the absorption of folic acid and iron.
Magnesium hydroxideMagnesium compoundsBasesHydroxidesAntacids
Magnesium carbonate, MgCO3, is a white solid that occurs in nature as a mineral. Several hydrated and basic forms of magnesium carbonate also exist as minerals. In addition, MgCO3 has a variety of uses.
Magnesium carbonateMagnesium compoundsCarbonatesAntacids
Magnesium chloride is the name for the chemical compounds with the formulas MgCl2 and its various hydrates MgCl2(H2O)x. These salts are typical ionic halides, being highly soluble in water. The hydrated magnesium chloride can be extracted from brine or sea water. Magnesium chloride as the natural mineral bischofite is also extracted (solution mining) out of ancient seabeds; for example, the Zechstein seabed in northwest Europe.
Magnesium chlorideMagnesium compoundsDeliquescent substancesChloridesMetal halides
Flash powder is a pyrotechnic composition, a mixture of oxidizer and metallic fuel, which burns quickly and if confined produces a loud report. It is widely used in theatrical pyrotechnics and fireworks and was once used for flashes in photography. Different varieties of flash powder are made from different compositions; most common are potassium perchlorate and aluminium powder. Sometimes, sulfur is included in the mixture to increase the sensitivity.
Flash powderExplosivesPyrotechnic compositions
In organometallic chemistry, a sandwich compound is a chemical compound featuring a metal bound by haptic covalent bonds to two arene ligands. The arenes have the formula CnHn, substituted derivatives (for example Cnn) and heterocyclic derivatives (for example BCnHn+1). Because the metal is usually situated between the two rings, it is said to be "sandwiched. " A special class of sandwich complexes are the metallocenes.
Sandwich compoundSandwich compounds
Phlogopite is a yellow, greenish, or reddish-brown member of the mica family of phyllosilicates. It is also known as magnesium mica. Phlogopite is the magnesium endmember of the biotite solid solution series, with the chemical formula KMg3AlSi3O10(F,OH)2. Iron substitutes for magnesium in variable amounts leading to the more common biotite with higher iron content. For physical and optical identification, it shares most of the characteristic properties of biotite.
PhlogopitePotassium mineralsMagnesium mineralsPhyllosilicatesIron mineralsMonoclinic mineralsManganese mineralsMica group
Brucite is the mineral form of magnesium hydroxide, with the chemical formula Mg2. It is a common alteration product of periclase in marble; a low-temperature hydrothermal vein mineral in metamorphosed limestones and chlorite schists; and formed during serpentinization of dunites. Brucite is often found in association with serpentine, calcite, aragonite, dolomite, magnesite, hydromagnesite, artinite, talc, and chrysotile.
BruciteMagnesium mineralsTrigonal mineralsHydroxide mineralsConcreteCement
Magnesium diboride (MgB2) is a simple ionic binary compound that has proven to be an inexpensive and useful superconducting material. Its superconductivity was announced in the journal Nature in March 2001. Its critical temperature (Tc) of 39 K (−234 °C; −389 °F) is the highest amongst conventional superconductors. This material was first synthesized and its structure confirmed in 1953, but its superconducting properties were not discovered until 2001.
Magnesium diborideBoridesMagnesium compoundsCeramic materialsSuperconductorsNon-stoichiometric compounds
This article is about the mineral. For the bird sometimes placed in the monotypic genus Pyrope, see Fire-eyed Diucon. The mineral pyrope is a member of the garnet group. Pyrope is the only member of the garnet family to always display red colouration in natural samples, and it is from this characteristic that it gets its name: from the Greek for fire and eye. Despite being less common than most garnets, it is a widely used gemstone with numerous alternative names, some of which are misnomers.
PyropeAluminium mineralsGarnet groupMagnesium minerals
Magnesium fluoride is an inorganic compound with the formula MgF2. The compound is a white crystalline salt and is transparent over a wide range of wavelengths, with commercial uses in optics.
Magnesium fluorideMagnesium compoundsOptical materialsFluoridesMetal halides
The carbon-burning process or carbon fusion is a set of nuclear fusion reactions that take place in massive stars (at least 8 at birth) that have used up the lighter elements in their cores. It requires high temperatures and densities (> 3×10 kg/m3
Magnesium citrate, a magnesium preparation in salt form with citric acid, is a chemical agent used medicinally as a saline laxative and to completely empty the bowel prior to a major surgery or colonoscopy. It is available without a prescription, both as a generic or under the brand name Citromag or Citroma. It is also used as a magnesium supplement in pills. The magnesium content of magnesium citrate corresponds to about 11% by mass.
Magnesium citrateMagnesium compoundsCitratesLaxatives
Carnallite is an evaporite mineral, a hydrated potassium magnesium chloride with formula: KMgCl3·6. It is variably colored yellow to white, reddish, and sometimes colorless or blue. It is usually massive to fibrous with rare pseudohexagonal orthorhombic crystals. The mineral is deliquescent (absorbs moisture from the surrounding air) and specimens must be stored in an airtight container.
CarnalliteHalide mineralsPotassium mineralsOrthorhombic mineralsMagnesium minerals
Magnesium stearate, also called octadecanoic acid, magnesium salt, is a white substance which is solid at room temperature. It has the chemical formula Mg(C18H35O2)2. It is a salt containing two equivalents of stearate (the anion of stearic acid) and one magnesium cation (Mg). Magnesium stearate melts at about 120 °C, is not soluble in water, and is generally considered safe for human consumption at levels below 2500 mg/kg per day.
Magnesium stearateMagnesium compoundsExcipientsStearates
Elektron was a magnesium alloy developed in Germany during the First World War between 1914-18 as a substitute for aluminium alloy. Elektron is unusually light and has a specific gravity of about 1.8 compared with the 2.8 of aluminium alloy. Elektron was used to make incendiary bombs: the B-1E Elektronbrandbombe. Once ignited, it could not be extinguished and burned at such a high temperature that it could penetrate armour plate.
Elektron (alloy)Magnesium alloysMagnesiumAlloys
Magnesium (pharmaceutical preparation)
Magnesium, as a pharmaceutical preparation, is used to treat conditions including magnesium deficiency and hypomagnesemia, as well as eclampsia. Usually in lower dosages, magnesium is commonly included in dietary mineral preparations, including many multivitamin preparations.
Magnesium (pharmaceutical preparation)Magnesium
Magnesium deficiency (medicine)
Magnesium deficiency refers to an intake of dietary magnesium below minimal levels, which can result in numerous symptoms and diseases. These can generally be remedied by an increase of magnesium in diet or oral supplements. However intravenous supplementation is necessary for more severe cases.
Magnesium deficiency (medicine)MagnesiumMineral deficiencies
Magnesium alloys are mixtures of magnesium with other metals, often aluminium, zinc, manganese, silicon, copper, rare earths and zirconium. Magnesium is the lightest structural metal. Magnesium alloys have a hexagonal lattice structure, which affects the fundamental properties of these alloys. Plastic deformation of the hexagonal lattice is more complicated than in cubic latticed metals like aluminum, copper and steel.
Magnesium alloyMagnesium alloysMagnesiumAlloys
Struvite is a phosphate mineral with formula: NH4MgPO4·6H2O. Struvite crystallizes in the orthorhombic system as white to yellowish or brownish-white pyramidal crystals or in platey mica-like forms. It is a soft mineral with Mohs hardness of 1.5 to 2 and has a low specific gravity of 1.7. It is sparingly soluble in neutral and alkaline conditions, but readily soluble in acid.
StruviteMagnesium mineralsPhosphate mineralsOrthorhombic mineralsAmmonium minerals