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AmphiboleA group of double chained inosilicate minerals whose basic chemical unit is the tetrahedron (SiO 4 ). They are common rock forming minerals and are found in most igneous and metamorphic rocks. They fo [..]
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AmphiboleIndividual member of the Amphibole group.
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Amphibolea group of dark-coloured, rock-forming, calcium–iron–magnesium silicate minerals
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Amphibole(n) a mineral or mineral variety belonging to the amphibole group
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AmphiboleA family of silicate minerals forming prism or needlelike crystals. Amphibole minerals generally contain iron, magnesium, calcium and aluminum in varying amounts, along with water. Hornblende
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AmphiboleA family of silicate minerals forming prism or needlelike crystals. Amphibole minerals generally contain iron, magnesium, calcium and aluminum in varying amounts, along with water. Hornblende always has aluminum and is a most common dark green to black variety of amphibole; it, forms forming in many igneous and metamorphic rocks. Actinolite has no [..]
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AmphiboleA mineral group that consists of common, dark-colored, rock-forming silicate minerals. The most common minerals are hornblende, tremolite, and actinolite.
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AmphiboleIndividual member of the amphibole group.
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Amphibole<chemical> A common mineral embracing many varieties varying in colour and in composition. It occurs in monoclinic crystals; also massive, generally with fibrous or columnar structure. The colour varies from white to gray, green, brown, and black. It is a silicate of magnesium and calcium, with usually aluminium and iron. Some common varietie [..]
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Amphibole
(mineral) A large group of structurally similar hydrated double silicate minerals, containing various combinations of sodium, calcium, magnesium, iron, and aluminium/aluminum
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