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pyroxene

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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
The upper mantle of Earth is composed mainly of olivine and pyroxene minerals. A second important series of pyroxene minerals are the sodium-rich pyroxenes, corresponding to the 'pyroxene triangle' nomenclature. wikipedia.org
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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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808 Merxia
The spectrum of this object indicates that it is an S-type asteroid with both low and high calcium forms of pyroxene on the surface, along with less than The high-calcium form of pyroxene forms 40% or more of the total pyroxene present, indicating a history of igneous rock deposits. wikipedia.org
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Kushiroite
Kushiroite is a rare mineral of the pyroxene group, with formula CaAlAlSiO6. It is the fully aluminian member. Kushiroite is an aluminium-analogue of other pyroxene-group members, davisite, esseneite, and grossmanite. wikipedia.org
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Chondrule
In these, grains of olivine and/or pyroxene are equidimensional and sometimes euhedral. They are named on the basis of the dominant mineral, i.e. porphyritic olivine (PO), porphyritic pyroxene (PP), and porphyritic olivine-pyroxene (POP). wikipedia.org
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Grossmanite
Grossmanite is a very rare mineral of the pyroxene group, with formula CaTi3+AlSiO6. It is the titanium-dominant member. References Pyroxene group Inosilicates Calcium minerals Titanium minerals Aluminium minerals Monoclinic minerals wikipedia.org
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Esseneite
Esseneite is a relative rare mineral of the pyroxene group, with formula CaFeAlSiO6. It is the ferric-iron-dominant member. Esseneite is an iron-analogue of other pyroxene-group members, davisite, grossmanite, and kushiroite. wikipedia.org
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Jeffersonite
Jeffersonite is a dark green pyroxene mineral, a manganese zinc enriched variety of augite, chemical formula , sometimes compared to aegirine. External links Mindat Abandoned Mines of New Jersey Calcium minerals Manganese(II) minerals Iron(II) minerals Zinc minerals Pyroxene group Minerals described wikipedia.org
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Augite
Augite is a common rock-forming pyroxene mineral with formula . The crystals are monoclinic and prismatic. Characteristics Augite is a solid solution in the pyroxene group. wikipedia.org
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Telaga Dringo
The Dringo Volcano was built up mostly of intermediate composition and pyroxene andesite. The breccia fragments consist of pyroxene andesite: plagioclase, pyroxene, opaque minerals, and glass as groundmass. wikipedia.org
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Harzburgite
Harzburgite typically forms by the extraction of partial melts from the more pyroxene-rich peridotite called lherzolite. If partial melting of the harzburgite continues, all of the pyroxene may be extracted from it to form magma, leaving behind the pyroxene-poor peridotite wikipedia.org
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