Crossword clues for olivine
The Collaborative International Dictionary
Chrysolite \Chrys"o*lite\, n. [L. chrysolithos, Gr. ?; chryso`s gold + ? stone: cf. F. chrysolithe.] (Min.) A mineral, composed of silica, magnesia, and iron, of a yellow to green color. It is common in certain volcanic rocks; -- called also olivine and peridot. Sometimes used as a gem. The name was also early used for yellow varieties of tourmaline and topaz.
Wiktionary
n. (context mineralogy geology English) Any of a group of olive green magnesium-iron silicate minerals that crystallize in the orthorhombic system.
WordNet
n. a mineral consisting of magnesium iron silicate; a source of magnesium
Wikipedia
The mineral olivine is a magnesium iron silicate with the formula ( Mg, Fe) Si O. Thus it is a type of nesosilicate or orthosilicate. It is a common mineral in the Earth's subsurface but weathers quickly on the surface.
The ratio of magnesium and iron varies between the two endmembers of the solid solution series: forsterite (Mg-endmember: Mg Si O) and fayalite (Fe-endmember: Fe Si O). Compositions of olivine are commonly expressed as molar percentages of forsterite (Fo) and fayalite (Fa) (e.g., FoFa). Forsterite has an unusually high melting temperature at atmospheric pressure, almost , but the melting temperature of fayalite is much lower (about ). The melting temperature varies smoothly between the two endmembers, as do other properties. Olivine incorporates only minor amounts of elements other than oxygen, silicon, magnesium and iron. Manganese and nickel commonly are the additional elements present in highest concentrations.
Olivine gives its name to the group of minerals with a related structure (the olivine group) which includes tephroite ( MnSiO), monticellite ( CaMgSiO) and kirschsteinite (CaFeSiO).
Olivine's crystal structure incorporates aspects of the orthorhombic P Bravais lattice, which arise from each silica (SiO) unit being joined by metal divalent cations with each oxygen in SiO bound to 3 metal ions. It has a spinel-like structure similar to magnetite but uses one quadravalent and two divalent cations M MO instead of two trivalent and one divalent cations.
Olivine is a mineral (a solid solution series) and a mineral group.
Olivine may also refer to:
- Olivine, colour
- Olivine Creek, in British Columbia
- Olivine Point, in the South Orkney Islands
- Olivine River, in New Zealand
Usage examples of "olivine".
Among the booty was a set of throne-like chairs, each adorned with carvings of flowers: marigolds of topaz and crocodilite, roses of pink quartz, hyacinths of lapis lazuli, their leaves cut from chryso-prase, olivine, jade.
I discovered that the exoskeleton was an organic-inorganic matrix composed of carbon compounds and silicate minerals, primarily olivine, pyroxene, and magnetite, substances commonly found in meteorites.
After three days the side effects of some of the component minerals, primarily peridotite and olivine, cause violent mental aberrations and hallucinations.
Possum was composed primarily of crystals: plagioclase, pyroxene, ilmenite, olivine, and other minerals.
Tolland and Corky had been discussing these metallic chondrules for some time now, talking in scientific terms well over Rachel's head—equilibrated olivine levels, metastable glass matrices, and metamorphic rehomogenation.
There were grains of rock—silicate minerals called olivines and pyroxenes—and minerals of iron and nickel, kamacite and taenite.
It simulated a natural grotto with three shallow terraces, carved from lustrous olivine shot through with rich veins of milky quartz and gold.
Above this 'transition zone' the main rocks are olivine, pyroxine, and garnet.
In fact, locked up in Cruithne there were also troilite, olivine, pyroxene, and feldspar—minerals that could also serve as sources of ferrous metals when the nickel-iron was exhausted, even if their extraction was a little more complex.
In fact, locked up in Cruithne there were also troilite, olivine, pyroxene, and feldspar -- minerals that could also serve as sources of ferrous metals when the nickel-iron was exhausted, even if their extraction was a little more complex.