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pyroxene

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Pyroxene - Wikipedia
Pyroxenes were so named due to their presence in volcanic lavas, where they are sometimes found as crystals embedded in volcanic glass; it was assumed they were impurities in the glass, hence the name meaning "fire stranger". However, they are simply early-forming minerals that crystallized before the lava erupted . en.wikipedia.org
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Pyroxene - Common Minerals - University of Minnesota
An important rock-forming mineral of igneous and metamorphic rocks, pyroxene is not a specific mineral, but an informal name used for a number of group of ... commonminerals.esci.umn.edu
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Pyroxene | Mineral Composition, Structure & Uses - Britannica
Pyroxene, any of a group of important rock-forming silicate minerals of variable composition, among which calcium-, magnesium-, and iron-rich varieties ... www.britannica.com
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pyroxene
pyroxene Min. (ˈpaɪərɒksiːn) [f. Gr. πῦρ, πυρο- fire + ξένος stranger: so named by Haüy 1796, because he thought it ‘a stranger in the domain of fire’ or alien to igneous rocks.] A species including a large variety of minerals, all bisilicates of lime with one or more of various other bases, most us... Oxford English Dictionary
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Pyroxene - an overview | ScienceDirect Topics
Pyroxene—It represents the mineral form of aluminum-silicon oxides and are usually present in volcanic lavas and enters water bodies when lava reaches the water ... www.sciencedirect.com
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Na-Pyroxene
Identifying a mineral as a pyroxene is generally not difficult, but distinguishing amongst the different pyroxenes can be challenging. sites.und.edu
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An introduction to minerals and rocks under the microscope
Pyroxenes are important rock-forming minerals commonly found in many igneous and metamorphic rocks. Pyroxenes in basaltic igneous rocks have different ... www.open.edu
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Pyroxene Group: Mineral information, data and localities.
A large group of inosilicate (chain silicate) minerals with the general formula ADSi 2 O 6. It is divided into the Clinopyroxene Subgroup (monoclinic) and the ... www.mindat.org
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ALEX STREKEISEN-Pyroxene-
Pyroxenes are the most significant and abundant group of rock-forming ferromagnesian silicates. They are found in almost every variety of igneous rock. www.alexstrekeisen.it
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Pyroxenes | Earth Sciences Museum | University of Waterloo
Pyroxenes are the most significant and abundant group of rock-forming ferromagnesium silicates. They are found in almost every variety of igneous rock. uwaterloo.ca
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Pyroxene - Geology is the Way
Pyroxenes are a group of chain silicates that occur as fundamental Mg, Fe, Ca, and Na-bearing minerals in many igneous and metamorphic rocks. geologyistheway.com
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Pyroxene pallasite grouplet
The grouplet is named "pyroxene pallasites" because they are the only pallasites that contain pyroxene. The grouplet was proposed in 1995. Both meteorites contain pyroxene and have a number of other similarities: for example their pyroxene composition, rare-earth element concentrations, and wikipedia.org
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Pyroxenite
The pyroxene-rich rocks, which result from the type of contact metamorphism known as pyroxene-hornfels facies, have siliceous sediment or basaltic protoliths Pyroxenites can be formed as cumulates in ultramafic intrusions by accumulation of pyroxene crystals at the base of the magma chamber. wikipedia.org
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Hedenbergite
Hedenbergite, CaFeSi2O6, is the iron rich end member of the pyroxene group having a monoclinic crystal system. Hedenbergite is a part of a pyroxene solid solution chain consisting of diopside and augite, and is the iron rich end member. wikipedia.org
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Davisite
Davisite is an exceedingly rare mineral of the pyroxene group, with formula CaScAlSiO6. It is the scandium-dominant member. It stands for scandium-analogue of other pyroxene-group members, esseneite, grossmanite and kushiroite. wikipedia.org
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