pyroxene


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Words related to pyroxene

any of a group of crystalline silicate mineral common in igneous and metamorphic rocks

References in periodicals archive ?
It is made up mostly of silicate minerals olivine and pyroxene which reacts with carbon dioxide, it converts the gas into calcite, a solid mineral, said an expert.
Fine-grained, nepheline- and cancrinite-absent syenite is most commonly found in the northern part of the pluton and is characterized by accessory Na-rich amphibole and pyroxene (Fig.
2007): Trace element zoning in pyroxenes from ODP Hole 735B gabbros: diffusive exchange or synkinematic crystal fractionation?
Basalt fiber is a material made from extremely fine fibers of basalt, which is composed of the minerals plagioclase, pyroxene and olivine.
Scientists also found telltale chemical fingerprints of pyroxene and olivine in and around the crater, two minerals that are commonly present in the Martian meteorites.
The finer tuffs are formed of sand to silt- sized fragments of glassy porphyritic basalt, dispersed crystals of olivine, pyroxene and zeolitized plagioclase, surrounded by a fine matrix highly enriched with organic matter, as algae, calcimicrobes, microbial peloids and framboids (Fig.
The rock also has different levels of titanium and calcium than Mercury has, plus large amounts of a chromium-rich version of the mineral pyroxene.
Essential minerals present were quartz, plagioclase and orthoclase in acidic igneous rocks while amphibole and pyroxene was also present in intermediate to basic igneous rocks (Figure 2).
CHEMIN RESULTS REVEALED: NASA's Curiosity rover gets its first taste of Mars and finds minerals: plagioclase feldspar, pyroxene and olivine.
18 consist of serpentine and calcite with minor concentrations of dolomite and plagioclase and traces of quartz, pyroxene and amphibole in some stratigraphic levels.
Andesite is an aphanitic and extrusive igneous rock composed of the Na-rich plagioclase, pyroxene and amphibole.
The rocks are hypocrystalline, with phenocrysts mainly of plagioclase and pyroxene in a glassy and cryptocrystalline matrix.
The particles' main components are minerals, such as olivine and pyroxene.
They show that magnetite, formed during serpentinization, together with paramagnetic phases as olivine, pyroxene and amphiboles, produces a magnetic lineation parallel to stretching lineation and may be used to evaluate structural directions where other markers are absent.
Just like the rocks on Earth, Moon's have lots of basalt and olivine, pyroxene, and mafic breccias, along with plagioclase feldspar, also known as anorthosite.