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what type of rock is serpentine

Template:Use dmy dates Serpentinite is a rock composed of one or more serpentine group minerals. Minerals in this group are formed by serpentinization, a hydration and metamorphic transformation of ultramafic rock from the Earth's mantle. Serpentinite is available in black, brown, colourless, green, grey, white colors. Its name is thought to be derived from its serpent-like green colors. In other words the serpentine minerals are the major constitutes of the rock serpentinite . Consists primarily of epidote, actinolite, chlorite, and plagioclase. Serpentine is a gem-quality hydrated magnesium silicate, usually green, yellowish-green, or brownish-green in color. The source material of serpentinite, peridotite, is a rock made of upwelled magma containing large amounts of iron. Serpentinite is a type of ultramafic rock, consisting predominantly of magnesium silicate and iron oxide minerals. 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 rocks. The Greek physician Dioscorides suggested ground-up serpentinite as a prevention for snakebite. Serpentine is actually the name for this mineral group and Serpentinite is actually the name for the rock group regardless of the type of dominant serpentine mineral. Thus the vegetation on the so-called serpentine landscape is dramatically different from other plant communities, and serpentine barrens contain many specialized, endemic species. Serpentine is actually a general name applied to several members of a polymorphic group. Minerals in the serpentine subgroup are usually green or brown, but can also be black, yellow or white. The word serpentine refers to the mottled, snakelike pattern sometimes seen on the rock. Blackstone Group - greenstone, amphibolite, serpentinite - Dark-green, massive to foliated metamorphosed gabbroic and basaltic rock interlayered with epiclastic rock; local pillow-structures preserved. Includes rock mapped formerly as Hunting Hill Greenstone. Get to know more about Serpentinite rock and characteristics of Serpentinite rock in the next sections. It often colors many of these rocks to a green color and most rocks that have a green color probably have serpentine in some amount. Serpentine is a major rock forming mineral and is found as a constituent in many metamorphic and weather igneous rocks. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. California designated serpentine the official state rock in 1965 (California was the first state to designate a state rock). Serpentine rock, so called because the pattern of the rock surface resembles a serpent’s skin, is actually a rock type originally formed from ultramafic rock. The streak of Serpentinite is white, greenish white or grey. Most ultramafic rocks, including serpentinite, contain naturally occurring asbestos (NOA) particles The alteration is particularly important at the sea floor at tectonic plate boundaries. It is believed the common green color is what inspired the name, serpentine, being a similar color and texture to that of a snake. Serpentine is not just a gemstone, but rather, it is a group of minerals which includes up to 20 different related members. Ultramafic rock, rich in iron and magnesium, forms within the earth’s mantle and finds its way to the surface … California has a greater number of minerals and a wider variety of rock types than does any other state. As a general rule of thumb, a translucent stone will have a stronger effect on psychic phenomena, while a more opaque stone has a clearer effect on the measurable, material world, but the differentiation is rather minor. Serpentine can range from translucent to opaque, and different opacities of stone can have slight variations in magical power. This type of metamorphic rock is low in plant nutrients and high in toxic metals. and rock are exposed to low temperatures (about 400 to 600 ºC) and metamorphic processes (high pressures) within the earth’s crust. Not a healthy idea, as you’ll soon learn. All State Rocks. Serpentine is a shiny green and blue rock found throughout California. Serpentine isn’t a single type of rock, but rather a suite of minerals, often called the serpentine subgroup. And different opacities of stone can have slight variations in magical power are usually green or,! 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