Dunite has an olivine content of over 90% and is likely a cumulate formed by olivine crystallizing and settling out of magma or a vein mineral lining magma conduits. Ultramafic rocks usually contain substantial olivine, and those with an olivine content of over 40% are described as peridotites. That magma crystallizes to mafic rocks such as gabbro and basalt. Mg-rich olivine crystallizes from magma that is rich in magnesium and low in silica. Olivine occurs in both mafic and ultramafic igneous rocks and as a primary mineral in certain metamorphic rocks. Some of the finest gem-quality olivine has been obtained from a body of mantle rocks on Zabargad Island in the Red Sea. It is also called chrysolite (or chrysolithe, from the Greek words for gold and stone), though this name is now rarely used in the English language. Translucent olivine is sometimes used as a gemstone called peridot ( péridot, the French word for olivine). Olivine is named for its typically olive-green color, thought to be a result of traces of nickel, though it may alter to a reddish color from the oxidation of iron. It has a spinel-like structure similar to magnetite but uses one quadrivalent and two divalent cations M 2 2+ M 4+O 4 instead of two trivalent and one divalent cations. Olivine's crystal structure incorporates aspects of the orthorhombic P Bravais lattice, which arise from each silica (SiO 4) unit being joined by metal divalent cations with each oxygen in SiO 4 bound to three metal ions. Olivine gives its name to the group of minerals with a related structure (the olivine group) – which includes tephroite ( Mn 2SiO 4), monticellite ( CaMgSiO 4), larnite (Ca 2SiO 4) and kirschsteinite (CaFeSiO 4) (commonly also spelled kirschteinite ). Manganese (Mn) and nickel (Ni) commonly are the additional elements present in highest concentrations. Olivine incorporates only minor amounts of elements other than oxygen (O), silicon (Si), magnesium (Mg) and iron (Fe). Melting temperature varies smoothly between the two endmembers, as do other properties. Forsterite's melting temperature is unusually high at atmospheric pressure, almost 1,900 ☌ (3,450 ☏), while fayalite's is much lower – about 1,200 ☌ (2,190 ☏). Compositions of olivine are commonly expressed as molar percentages of forsterite (Fo) and fayalite (Fa) ( e.g., Fo 70Fa 30). The ratio of magnesium to iron varies between the two endmembers of the solid solution series: forsterite (Mg-endmember: MgĤ).
Olivine also has many other historical uses, such as the gemstone peridot (or chrysolite), as well as industrial applications like metalworking processes. For this reason, olivine has been proposed as a good candidate for accelerated weathering to sequester carbon dioxide from the Earth's oceans and atmosphere, as part of climate change mitigation. The primary component of the Earth's upper mantle, it is a common mineral in Earth's subsurface, but weathers quickly on the surface. It is a type of nesosilicate or orthosilicate. ɪ ˌ v iː n/) is a magnesium iron silicate with the chemical formula ( Mg 2+, Fe 2+) 2 Si O 4. Change locked tile image according to mapīest generated maps from this tool, and other tools, can be found at NGU Industries Fandom.For other uses, see Olivine (disambiguation).Add heat maps of both speed and production gains.
NGU INDUSTRIES WIKI CODE
This is currently only available by running the optimizer from code with Go. If you have not yet unlocked all the tiles of a given map, you can go into subfolder plugins/locations//data and edit the corresponding txt file before running the optimizer. Hw = horizontal, vertical wall (production) Udlr = up, down, left, right arrows (production) ^v = up, down, left, right arrows (speed) If you already have an optimized map layout, you can draw an image of it by using command draw. Once GoLang is installed, clone the repo and from its root use command go run /MisterCodo/ngu/cli. If you want to make modifications to the code, the only dependency is GoLang. It will run forever and everytime a new higher scoring map is found it will be both printed to console and saved as a png image. m, -map int map to optimize: (1)Tutorial Island, (2)Flesh World, (3)Planet Tronne, (4)Candy Land, (5)Mansions & Managers (default 1)įor instance, to launch a speed optimization for Candy Land with box and knight beacons, use command cli optimize -m 4 -b 2 -g 2. g, -goal int optimization goal: (1)Speed&Production, (2)Speed, (3)Production (default 1)
b, -beacons int optimization beacon types available: (1)Box, (2)Box & Knight, (3)Box, Knight & Arrow, (4) Box, Knight, Arrow & Wall, (5)All (default 5) Optimize placement of beacons on NGU Industries map.
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