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| alkaline-earth metal |
any of a group of highly reactive chemical elements, such as calcium and magnesium, that are typically divalent cations and form compounds with various other elements. |
| amphibole |
any of a number of hydrous silicate minerals, such as hornblende, that mostly comprise various combinations of magnesium, calcium, sodium, iron, and aluminum. |
| basalt |
a dense, fine-grained, dark-colored igneous rock created by lava flow that is rich in minerals containing magnesium and iron. The most common igneous rock on the Earth's surface due to its high abundance on the ocean floor. |
| biotite |
a mica commonly found in igneous and metamorphic rock, ranging in color from dark green or brown to black, and containing iron, magnesium, potassium, and aluminum. |
| chrysolite |
a usu. magnesium-rich form of olivine, used as a gemstone. |
| dolomite |
a usu. gray, pink, or white mineral, calcium magnesium carbonate, used esp. as a construction material and a fertilizer. [1/2 definitions] |
| Epsom salts |
hydrated magnesium sulfate, used to purge the bowels. |
| hornblende |
a variety of amphibole that is greenish to black in color, common in metamorphic rocks and dark igneous rocks that are rich in iron and magnesium. |
| magnesia |
a white, powdery oxide of magnesium, used esp. in medicine as a laxative or antacid. (See milk of magnesia.) |
| mag wheel |
an automobile or truck wheel of steel alloyed with magnesium or aluminum and thus relatively lightweight and shiny. |
| Mg |
symbol of the chemical element magnesium. |
| milk of magnesia |
a milky mixture of magnesium hydroxide and water, used primarily as a laxative or antacid. |
| olivine |
a common mineral silicate of magnesium and iron, found in gray-green crystalline masses in igneous and metamorphic rock, and used esp. as a structural material in bricks for lining furnaces. |
| saponite |
a hydrous silicate of aluminum and magnesium that is found as a soft, soapy filling in cavities of certain rocks. |
| sapphirine |
a silicate of magnesium and aluminum having a bluish green color. [1/3 definitions] |
| spinel |
any of a group of hard, crystalline mineral oxides containing magnesium and aluminum, the red variety of which is used as a gem. |
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