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Serpentinite is a metamorphic rock composed predominantly of serpentine group minerals formed by serpentinization of mafic or ultramafic rocks. The ancient origin of the name is uncertain, it may be from the similarity of its texture or color to snake skin. [1] Greek pharmacologist Dioscorides (AD 50) recommended eating this rock to prevent ...
The name comes from the greenish color and smooth or scaly appearance from the Latin serpentinus, meaning "snake-like". Serpentine subgroup is a set of common rock-forming hydrous magnesium iron phyllosilicate ((Mg,Fe) 3 Si 2 O 5 4) minerals, resulting from the metamorphism of the minerals that are contained in mafic to ultramafic rocks. [6]
Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup , especially antigorite , lizardite , and chrysotile or white asbestos, all of which are commonly found in ultramafic ...
Serpentine subgroup, a group of minerals; Serpentinite, a type of rock; Serpentine soil, soil derived from serpentinite; Serpentine (alkaloid), a chemical compound; Serpentine receptor, a protein in cellular membranes; Serpentine powder, a type of gunpowder
Serpentinization is a hydration and metamorphic transformation of ferromagnesian minerals, such as olivine and pyroxene, in mafic and ultramafic rock to produce serpentinite. [1] Minerals formed by serpentinization include the serpentine group minerals (antigorite, lizardite, chrysotile), brucite, talc, Ni-Fe alloys, and magnetite.
The serpentinite has a bluish to greenish gray color, and consists of serpentine (mostly the variety antigorite), with accessory minerals of chrysotile (a form of asbestos), magnetite, and talc. Serpentinite is derived by the metamorphism of ultramafic rocks (rocks rich in the minerals olivine and pyroxene) in a water-rich environment.
Strongly deformed and serpentinized rocks appear marble-like due to interchanging dark green and light green areas. Crosscutting veins are mainly mineralized by serpentine minerals (like cross fibers of chrysotile) and magnetite. Under the microscope the following minerals can be identified: antigorite; chrysotile
The Coal Creek Serpentinite (Coal Creek Serpentine) is a name for a Precambrian rock formation that outcrops on the southeastern side of the Llano Uplift in Gillespie and Blanco counties, Texas. The Coal Creek Serpentinite is tabular south-dipping body of serpentinite.
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