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Amphibolite from Cape Cod, Massachusetts Garnet bearing amphibolite from Val di Fleres, Italy. Amphibolite (/ æ m ˈ f ɪ b ə l aɪ t /) is a metamorphic rock that contains amphibole, especially hornblende and actinolite, as well as plagioclase feldspar, but with little or no quartz.
Amphibole ()Amphibole (/ ˈ æ m f ə b oʊ l / AM-fə-bohl) is a group of inosilicate minerals, forming prism or needlelike crystals, [1] composed of double chain SiO 4 tetrahedra, linked at the vertices and generally containing ions of iron and/or magnesium in their structures.
These show the most well-developed schistosity, defined as the extent to which platy minerals are present and are aligned in a single direction, so that the rock easily splits into plates less than a centimeter (0.4 inches) thick. [24] Gneisses, which are more coarse grained and show thicker foliation than schists, with layers over 5mm thick. [23]
As we, people, live in cities and become more and more disconnected from nature, it's easy to forget how majestic and gorgeous it is. ... The Today Show. 5-year-old sends 'full-on crazy' messages ...
Life on Our Planet is an American television nature documentary series released on Netflix and produced by Amblin Television and Silverback Films. Executive-produced by Steven Spielberg and narrated by Morgan Freeman, the series focuses on the evolutionary history of complex life on Earth. Upon its release, the series received generally mixed ...
Logo used since March 4, 2023 [note 1]. This is a list of television programs broadcast by Nickelodeon in the United States. The channel was first tested on December 1, 1977, as an experimental local channel in Columbus, Ohio.
Banded iron formations, sedimentary rock that formed in sea water; Garnet in "faux-amphibolite", Nuvvuagittuq Greenstone Belt. The cummingtonite amphibolite that dominates the belt is unusual that sections of the rock have a grayish-beige color, compared to the dark green of common amphibolites, giving it the nickname "faux-amphibolite".
Mysterious tar balls washed up on several Florida beaches, forcing closures and triggering an investigation by the U.S. Coast Guard. Fort Lauderdale’s shoreline was among the most impacted ...