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- Amphibolite - Wikipedia
Amphibolite ( æmˈfɪbəlaɪt ) is a metamorphic rock that contains amphibole, especially hornblende and actinolite, as well as plagioclase feldspar, but with little or no quartz It is typically dark-colored and dense, with a weakly foliated or schistose (flaky) structure
- Amphibolite: Metamorphic Rock - Pictures, Definition More
What is Amphibolite? 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: Mineral information, data and localities.
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%
- Amphibolite Rock: Formation, Minerals Geologic Setting
Amphibolite forms during regional metamorphism and is rich in hornblende Learn where it forms and how to identify it in the field
- Amphibolite - ALEX STREKEISEN
Amphibolites define a particular set of temperature and pressure conditions known as the amphibolite facies, with temperature of 500 to 750 °C and pressures of 8-7 kbar
- Amphibolite | Metamorphic, Igneous, Foliated | Britannica
amphibolite, a rock composed largely or dominantly of minerals of the amphibole group The term has been applied to rocks of either igneous or metamorphic origin
- Amphibolite - Geology 1501 - ECU
Type Metamorphic Rock Texture Non-foliated to weakly-foliated; Medium-grained Composition Amphibole and Plagioclase Index Minerals Amphibole Color Black Miscellaneous Salt and pepper appearance Metamorphic Type Regional Metamorphic Grade Middle Grade (Middle P – Middle T) Parent Rock Basalt; Mafic igneous rocks Metamorphic Environment Middle grade regional metamorphism along a convergent
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