Amphibolite: Metamorphic Rock - Pictures, Definition & More
Amphibolite is a coarse-grained metamorphic rock that is composed mainly of green, brown, or black amphibole minerals and plagioclase feldspar. The amphiboles are usually members of the hornblende group.
Amphibolite - Wikipedia
Amphibolite is a dark-colored and dense rock that forms by metamorphism of mafic igneous rocks, such as basalt. It contains amphibole, such as hornblende and actinolite, and plagioclase feldspar, and may have ortho- or para- varieties depending on its protolith and field relationships.
Amphibolite: Mineral information, data and localities. - mindat.org
Amphibolite is a gneissose or granofelsic metamorphic rock mainly consisting of green, brown or black amphibole and plagioclase (including albite), which combined form ≥75% of the rock and both of which are present as major constituents; the amphibole constitutes ≥50% of the total mafic constituents and is present in an amount of ≥30%. A ...
Amphibolite Classification, Composition, Formation and Uses
2023年4月23日 · Amphibolite is a coarse-grained rock that forms from the metamorphism of mafic igneous or sedimentary rocks. It contains mainly amphibole and plagioclase feldspar, and may have other minerals such as biotite, garnet, or kyanite.
Amphibolite - ALEX STREKEISEN
Amphibolite is a gneissose or granofelsic metamorphic rock mainly consisting of green, brown or black amphibole and plagioclase. Learn about its classification, mineralogy, facies and examples from various protoliths and locations.
Metamorphic Rock Types: Pictures and Descriptions - ThoughtCo
2019年5月10日 · Learn about the different types of metamorphic rocks, how they form, and what minerals they contain. See photos and examples of amphibolite, argillite, blueschist, cataclasite, eclogite, gneiss, greenschist, hornfels, marble, quartzite, and more.
6.4.8: Amphiboles - Geosciences LibreTexts
2022年12月16日 · Learn about the complex and variable chemistry of amphiboles, a group of chain silicate minerals. See the generic formula, the amphibole quadrilateral, and the common end members and analogs of amphiboles and pyroxenes.
Amphibolite - Metamorphic Rocks - Sandatlas
Amphibolite is a common metamorphic rock composed of amphiboles and plagioclase, often formed from basalt or impure carbonate rocks. Learn about its color, composition, formation, association, and uses with examples and photos.
Amphibole - Wikipedia
Amphibole is a mineral supergroup that forms prism or needlelike crystals, composed of double chain SiO4 tetrahedra. It contains iron and/or magnesium and can be green, black, colorless, white, yellow, blue, or brown. Some amphiboles are …
8.7.2: Metamorphosed Mafic Rocks (Metabasites)
2022年8月28日 · Learn about the common minerals and rock types of metabasites, which are metamorphosed mafic igneous rocks. See examples of greenstone, greenschist, amphibolite, and mafic gneiss, and how they form at different grades of metamorphism.