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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 the surface.
However, more than one olivine-type phase may be used as a battery's cathode material. Olivine compounds such as A y MPO 4, Li 1−x MFePO 4, and LiFePO 4−z M have the same crystal structures as LiMPO 4, and may replace it in a cathode. All may be referred to as “LFP”. [citation needed] Manganese, phosphate, iron, and lithium also form an ...
It is widely used as a camouflage color for uniforms and equipment in the armed forces. The first recorded use of olive drab as a color name in English was in 1892. [8] Drab is an older color name, from the middle of the 16th century. It refers to a dull light brown color, the color of cloth made from undyed homespun wool.
Olivine basalt is commonly used by foundries, boilermakers and boiler users to protect the area around a burner tip or to protect a floor from molten metal and other slag. Its use in this fashion is appropriate since olivine is a highly refractory, high-melting-temperature mineral. [2] [3]
Magnesite can be cut, drilled, and polished to form beads that are used in jewelry-making. Magnesite beads can be dyed into a broad spectrum of bold colors, including a light blue color that mimics the appearance of turquoise. The Japanese-American artist Isamu Noguchi used magnesite as a sculptural material for some of his artworks. [28]
Kimberlite: formed in volcanic pipes and at least 35% olivine [9] Kimberlite is a highly brecciated variant of peridotite formed in volcanic pipes and is known for being the host rock to diamonds. Unlike other forms of peridotite, kimberlite is quite rare. [10] Pyroxene peridotite: From 40% to 90% olivine and less than 5% hornblende
Teschenite is typically composed of essential titan-augite, analcime, labradorite and small quantities of olivine and may include hornblendes; the presence of analcime is a key characteristic of teschenites and its pressence is a factor that differentiates it from other similar rocks.
Dunite may also form by the accumulation of olivine crystals on the floor of large basaltic or picritic magma chambers. These " cumulate " dunites typically occur in thick layers in layered intrusions , associated with cumulate layers of wehrlite , olivine pyroxenite , harzburgite , and even chromitite (a cumulate rock consisting largely of ...