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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.
Peridot is one of the few gemstones that occur in only one color: an olive-green. The intensity and tint of the green, however, depends on the percentage of iron in the crystal structure, so the color of individual peridot gems can vary from yellow, to olive, to brownish-green. In rare cases, peridot may have a medium-dark toned, pure green ...
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.
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Most peridotite is green in color due to its high olivine content. However, peridotites can range in color from greenish-gray [ 44 ] [ 45 ] to nearly black [ 46 ] to pale yellowish-green. [ 47 ] Peridotite weathers to form a distinctive brown crust in subaerial exposures [ 48 ] and to a deep orange color in submarine exposures.
Nephelinite is dark in color and may resemble basalt in hand specimen. However, basalt consists mostly of clinopyroxene (augite) and calcic plagioclase . Basalt, alkali basalt , basanite , tephritic nephelinite, and nephelinite differ partly in the relative proportions of plagioclase and nepheline.
The experts at the Pantone Color Institute have officially decided. ... The meaning behind Pantone’s Color of the Year 2024. Leah Dolan, CNN. December 7, 2023 at 5:30 AM.