AMPHIBOLITE Meaning and
Definition
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Amphibolite is a type of metamorphic rock characterized by its mineral composition and texture. It belongs to the amphibole group of minerals, specifically comprising predominantly the minerals hornblende and plagioclase feldspar. Amphibolite typically forms under high-pressure, regional metamorphism conditions that occur deep within the Earth's crust.
This rock has a distinct appearance, with a typically dark color ranging from green to black. It displays a medium to coarse-grained texture, often exhibiting elongated crystals of hornblende minerals. The presence of plagioclase feldspar can create variations in color, sometimes causing the rock to exhibit shades of white or gray as well.
Amphibolite commonly occurs in areas of extensive mountain-building activity or where tectonic forces have led to the convergence and collision of crustal plates. It forms from the transformation of igneous and sedimentary rocks, often through the process of recrystallization where the original minerals go through chemical or structural changes.
Due to its durability, resistance to weathering, and attractive appearance, amphibolite is frequently utilized as a construction material, decorative stone, and occasionally as a dimension stone. It may be polished and used in countertops, flooring, and various architectural applications. Additionally, its density and heat-resistant properties make it suitable for utilization in some refractory applications.
In summary, amphibolite is a metamorphic rock composed mainly of hornblende and plagioclase feldspar. It forms through the transformation of pre-existing rocks under high-pressure metamorphism and commonly occurs in regions with intense geological activity. Its distinct characteristics and durability make it a valuable resource in various construction and decorative applications.
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A name applied by F. geol., to hornblende and hornblende rock, from the difficulty of distinguishing them, from augite.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Common Misspellings for AMPHIBOLITE
Etymology of AMPHIBOLITE
The word "amphibolite" is derived from the Greek prefix "amphi-" which means "both" or "two", and the Greek word "bolos" which means "a throw" or "a stroke". The term "amphibolite" was first introduced in 1813 by the German mineralogist Abraham Gottlob Werner.
The name "amphibolite" was given to the rock because it contains two different minerals that are mainly amphiboles (such as hornblende) and plagioclase feldspar. The rock's appearance can vary depending on the proportions of these minerals, but it generally possesses a dark green to black color and a granular texture.
Similar spelling words for AMPHIBOLITE
- amphibian,
- immoveability,
- amphiprotic,
- amphiprion,
- Amphibiolite,
- amphibolips,
- amphibology,
- amphibia,
- amphiboly,
- Amphiboloid,
- immovabillity,
- amphibiotic,
- amphiboloidea,
- amphiploid,
- immovability,
- Amovability,
- amphiploidy,
- amphibole.
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