Olivine: A rock-forming mineral. Used as the gemstone peridot.
网页Olivine is the name of a group of rock-forming minerals that are typically found in mafic and ultramafic igneous rocks such as basalt, gabbro, dunite, diabase, and peridotite. They are usually green in color and have compositions that typically range between Mg 2 …
Olivine | Properties, Uses and Occurrence - Geology Science
网页2023年11月7日 — Olivine is typically inexperienced in color however also can be yellow-inexperienced, greenish yellow, or brown. It is obvious to translucent with a glassy luster and a hardness between 6.5 and 7.0. It is the simplest not unusual igneous mineral with these residences.
New remote sensing technique could bring key planetary mineral …
网页2020年11月2日 — A mountain peak at the center of the Moon's Copernicus Crater has an abundance of olivine, a mineral that can help scientists understand the internal evolution of planetary bodies. A new technique developed by Brown University researchers can help to study olivine from afar.
Olivine - Wikipedia
网页The mineral olivine (/ ˈɒl.ɪˌviːn /) is a magnesium iron silicate with the chemical formula (Mg, Fe)2 Si O 4. It is a type of nesosilicate or orthosilicate. The primary component of the Earth's upper mantle, [9] it is a common mineral in …
6.4.10: Olivine Group Minerals - Geosciences LibreTexts
网页2022年12月16日 — Olivine group minerals, belonging to the isolated tetrahedra silicate subclass, all have similar atomic arrangements. By far, the most important mineral of this group is called olivine. In contrast with some of the other silicates previously discussed, olivine chemistry is quite simple.
Olivine Group | Common Minerals
网页The main minerals associated with olivine are from the pyroxene and plagioclase mineral groups, as well as the mineral serpentine, which forms from olivine as it is metamorphosed and altered.
Shock veins and brown olivine in Martian meteorites: Implications …
网页2018年6月4日 — Shergottite Martian meteorites are known to contain brown-colored olivine (brown olivine), which is considered to form during a shock event on Mars. In order to constrain the formation conditions of brown olivine, four shergottites with brown olivine and four shergottites without brown olivine are analyzed in this study.
Olivine‐Carbonate Mineralogy of the Jezero Crater Region - Brown …
网页2020年2月21日 — In this study we have primarily used the asymmetric Gaussian spectral band fitting approach (Brown, 2006; Brown et al., 2010) to produce olivine-discriminating maps of the Jezero crater watershed. We summarize the key points of the model here, then discuss the parameters of this model and provide example asymmetric Gaussian fits.
Olivine‐Carbonate Mineralogy of the Jezero Crater Region - Brown …
网页2020年2月21日 — We identify a previously unrecognized relationship between carbonates in the Jezero crater region and the 1 μm band of associated olivine. We use the shape and centroid of the 1 μm band to place bounds on the grain size (>500 microns) and composition (Fo ~40–66) of the olivine.
New remote sensing technique could bring key planetary mineral …
网页2020年11月2日 — Planetary scientists from Brown University have developed a new remote sensing method for studying olivine, a mineral that could help scientists understand the early evolution of the Moon,...
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