Olivine - Wikipedia
The mineral olivine (/ ˈ ɒ l. ɪ ˌ v iː n /) 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 Earth's subsurface, but weathers quickly on …
Olivine | Mineral, Rock & Magma | Britannica
2024年11月28日 · The structure of olivine can be viewed as a layered closest-packed oxygen network, with silicon ions occupying some of the tetrahedral voids and the calcium, ferrous iron, and magnesium cations occupying some of the octahedral voids (Figure 2).
Olivine | Fe2Mg8O20Si5 | CID 71586774 - PubChem
Olivine | Fe2Mg8O20Si5 | CID 71586774 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Olivine | Properties, Uses and Occurrence - Geology Science
2023年11月7日 · The chemical composition of most olivine falls somewhere between pure forsterite (Mg2SiO4) and pure fayalite (Fe2SiO4). In that series, Mg and Fe can alternative freely for each other in the mineral’s atomic structure – in any ratio.
Olivine Mineral Data
Empirical Formula: Mg 1.6 Fe 2+ 0.4 (SiO 4) Environment: Basic and ultra basic igneous rocks. Goup species name. IMA Status: Not Approved IMA : Locality: Common world wide occurrence. Link to MinDat.org Location Data. Name Origin: Named after the green color. Name Pronunciation: Olivine : Synonym:
Understanding Olivine: Structure, Composition, and Geological ...
2024年6月30日 · Olivine, a key mineral group, crystallizes with orthorhombic symmetry. Its structure consists of independent SiO4 tetrahedra linked by divalent cations in six-fold coordination. Within the (Mg,Fe)-olivines, there is a complete solid solution between magnesium-rich forsterite (Mg2SiO4) and iron-rich fayalite (Fe2SiO4).
Olivine Group | Common Minerals - University of Minnesota Twin …
The olivine minerals are important rock-forming minerals in mafic igneous rocks such as basalt and gabbro, and many peridotite rocks are almost entirely composed of olivine. Olivine also occurs as well-developed crystal masses in xenoliths found in volcanic rocks.
Olivine - ALEX STREKEISEN
The olivine structure (Fig.2) consists of Isolated (SiO 4) 4-tetrahedra pointing alternately up and down along rows parallel to c axis. Mg 2+ and Fe 2+ occur in octahedral coordination (M-cations) in two distinct octahedral sites: a distorted M1 site and a more regular M2 site.
Olivine: A rock-forming mineral. Used as the gemstone peridot.
The chemical composition of most olivine falls somewhere between pure forsterite (Mg 2 SiO 4) and pure fayalite (Fe 2 SiO 4). In that series, Mg and Fe can substitute freely for one another in the mineral's atomic structure - in any ratio.
Olivine - HyperPhysics
Olivine is a silicate mineral with the general composition (Mg,Fe) 2 SiO 4. Having a very high crystallization temperature, it is formed early in the Bowen reaction series . It has no cleavage planes and is black to dark green in color.
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