a naturally occurring magnesium oxide
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AnswerCrossword Clue
periclasea naturally occurring magnesium oxide
periclasesPERICLASE, a naturally occurring magnesium oxide
periclasticlike a periclase, a naturally occurring magnesium oxide
sepiolitehydrated magnesium silicate occurring as a soft white or yellowish claylike mineral; aka meerschaum
meerschaum(German) hydrated magnesium silicate occurring as a soft white or yellowish claylike mineral, aka sepiolite
sepiolitesSEPIOLITE, hydrated magnesium silicate occurring as a soft white or yellowish claylike mineral; aka meerschaum
meerschaumsMEERSCHAUM, (German) hydrated magnesium silicate occurring as a soft white or yellowish claylike mineral, aka sepiolite
polyhalitea triclinic hydrated sulphate of calcium, potassium, and magnesium, usually occurring as red or yellowish fibrous masses
polyhalitesPOLYHALITE, a triclinic hydrated sulphate of calcium, potassium, and magnesium, usually occurring as red or yellowish fibrous masses
kainitesmineral, hydrous sulfate of magnesium and potassium chloride, occurring in granular crystalline masses, a source of potassium salts
kainitemineral, hydrous sulfate of magnesium and potassium chloride, occurring in granular crystalline masses, a source of potassium salts
pyropesmineral, magnesium-aluminum garnet, Mg3Al2Si3O12, occurring in crystals of varying shades of red, and frequently used as a gem
saponitea hydrous magnesium aluminum silicate occurring in soft soapy amorphous masses and filling veins and cavities (as in serpentine)
spinelsA hard glassy mineral occurring as octahedral crystals of variable color and consisting chiefly of magnesium and aluminum oxides
kieseriteA fine-grained white mineral consisting of hydrated magnesium sulfate, occurring often in salt mines in Europe and India
boracitesstrongly pyroelectric mineral, a borate and chloride of magnesium, Mg6Cl2B14O26, occurring in white or colorless cubic crystals or fine-grained masses
boracitestrongly pyroelectric mineral, a borate and chloride of magnesium, Mg6Cl2B14O26, occurring in white or colorless cubic crystals or fine-grained masses
vesuvianitea silicate of calcium, magnesium, and aluminium, aka idocrase, occurring as brown, yellow, or green crystals or masses in metamorphosed limestones
pyroxenesAny of a large class of rock-forming silicate minerals, generally containing calcium, magnesium, and iron and typically occurring as prismatic crystals
vesuvianitesVESUVIANITE, a silicate of calcium, magnesium, and aluminium, aka idocrase, occurring as brown, yellow, or green crystals or masses in metamorphosed limestones
cordieriteA dark blue mineral occurring chiefly in metamorphic rocks. It consists of an aluminosilicate of magnesium, and also occurs as a dichroic gem variety
olivineany of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive-green to gray-green masses as an important constituent of basic igneous rocks
olivinicany of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive-green to gray-green masses as an important constituent of basic igneous rocks
olivinesany of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive-green to gray-green masses as an important constituent of basic igneous rocks
hornblendesA dark brown, black, or green mineral of the amphibole group consisting of a hydroxyl alumino-silicate of calcium, magnesium, and iron, occurring in many igneous and metamorphic rocks
pyroxeneany of a very common group of minerals of many varieties, silicates of magnesium, iron, calcium, and other elements, occurring as important constituents of many kinds of rocks, esp. basic igneous rocks