• Olivine - Wikipedia

    en.wikipedia.org/wiki/Olivine The mineral olivine (/ ˈ ɒ l ɪ ˌ v iː n /) is a magnesium iron silicate with the formula (Mg 2+, Fe 2+) 2 Si O 4.Thus it is a type of nesosilicate or orthosilicate.The primary component of the earth's upper mantle, it is a common mineral in Earth's subsurface but weathers quickly on the surface.. The ratio of magnesium to iron varies between the two endmembers of the solid solution series ...
  • Olivine: A rock-forming mineral. Used as the gemstone peridot.

    geology.com/minerals/olivine.shtml Olivine in basalt: Lherzolite (a variety of peridotite) nodules in a xenolith collected from a basalt flow at Peridot Mesa, Arizona. These xenoliths often contain crystals of olivine with a color and clarity that is suitable for use as a peridot gemstone. This specimen is approximately 3 inches (7.6 centimeters) across.
  • Olivine | mineral | Britannica

    www.britannica.com/science/olivine Olivine, any member of a group of common magnesium, iron silicate minerals. Olivines are an important rock-forming mineral group. Magnesium-rich olivines are abundant in low-silica mafic and ultramafic igneous rocks and are believed to be the most abundant constituent of the Earth’s upper mantle.
  • Olivine | Definition of Olivine by Merriam-Webster

    www.merriam-webster.com/dictionary/olivine Olivine definition is - a usually greenish mineral that is a complex silicate of magnesium and iron used especially in refractories.
  • Olivine | Definition of Olivine at Dictionary.com

    www.dictionary.com/browse/olivine Olivine definition, any of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive-green to gray-green masses as an important constituent of basic igneous rocks. See more.
  • Olivine: The mineral Olivine, peridot information and pictures

    www.minerals.net/mineral/olivine.aspx Olivine is one of the most common minerals in the earth, and is a major rock forming mineral. Despite this, good specimens and large crystals are uncommon and sought after.
  • Olivine - definition of olivine by The Free Dictionary

    www.thefreedictionary.com/olivine 1. (Minerals) an olive-green mineral of the olivine group, found in igneous and metamorphic rocks. The clear-green variety (peridot) is used as a gemstone.
  • University of Minnesota’s Mineral Pages: Olivine

    www.esci.umn.edu/courses/1001/minerals/olivine.shtml Most misidentifications of olivine occur as a result of a common tendency to identify all green minerals as olivine. Although olivine is certainly one of the most common green minerals, greenish hues is not limited to this group of rock forming minerals.
  • Olivine: Mineral information, data and localities.

    www.mindat.org/min-2983.html Equivalent to Fayalite-Forsterite Series; usually a more or less Fe-bearing forsterite.Very common in volcanic rocks. See also Olivine Group. May contain some PO4 replacing SiO4 (Schneider et al., 2013). Visit gemdat.org for gemological information about Olivine.
  • Hawaii's Volcano Is Literally Erupting Gems

    www.forbes.com/sites/trevornace/.../hawaiis-volcano-is-literally-erupting-gems There are several places in Hawaii that the beaches are a green color, this is due to a high concentration of olivine that has weathered out of the mafic lava (basalt).