Definition of amphibole

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Amphibole (n.) A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, generally with fibrous or columnar structure. The color varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varieties are tremolite, actinolite, asbestus, edenite, hornblende (the last name being also used as a general term for the whole species). Amphibole is a constit

Lern More About Amphibole

Tremolite :: Tremolite (n.) A white variety of amphibole, or hornblende, occurring in long, bladelike crystals, and coarsely fibrous masses..
Smaragdite :: Smaragdite (n.) A green foliated kind of amphibole, observed in eclogite and some varietis of gabbro..
Pargasite :: Pargasite (n.) A dark green aluminous variety of amphibole, or hornblende..
Hornblende :: Hornblende (n.) The common black, or dark green or brown, variety of amphibole. (See Amphibole.) It belongs to the aluminous division of the species, and is also characterized by its containing considerable iron. Also used as a general term to include the whole species..
Uralitization :: Uralitization (n.) The change of pyroxene to amphibole by paramorphism.
Amphibole :: Amphibole (n.) A common mineral embracing many varieties varying in color and in composition. It occurs in monoclinic crystals; also massive, generally with fibrous or columnar structure. The color varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varieties are tremolite, actinolite, asbestus, edenite, hornblende (the last name being also used as a general term for the whole species). Amphibole is a constit
Actinolite :: Actinolite (n.) A bright green variety of amphibole occurring usually in fibrous or columnar masses.
Edenite :: Edenite (n.) A variety of amphibole. See Amphibole.
Amphibolic :: Amphibolic (a.) Of or resembling the mineral amphibole.
Glaucophane :: Glaucophane (n.) A mineral of a dark bluish color, related to amphibole. It is characteristic of certain crystalline rocks..
Asbestos :: Asbestos (n.) A variety of amphibole or of pyroxene, occurring in long and delicate fibers, or in fibrous masses or seams, usually of a white, gray, or green-gray color. The name is also given to a similar variety of serpentine..
Uralite :: Uralite (n.) Amphibole resulting from the alternation of pyroxene by paramorphism. It is not uncommon in massive eruptive rocks.
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