Eucrites consist of basaltic rock from the crust of 4 Vesta or a similar parent body. They are mostly composed of Ca-poor pyroxene, pigeonite, and Ca-rich plagioclase (anorthite). Based on differences of chemical composition and features of the component crystals, they are subdivided into several groups: ==Etymology== Eucrites get their name from ...
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http://en.wikipedia.org/wiki/Eucrite
rock that contains 30 to 35 percent calcium-rich plagioclase feldspar (bytownite or anorthite), as well as augite, hypersthene, pigeonite, and ... [1 related articles]
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http://www.britannica.com/eb/a-z/e/50
A section through a piece of the basaltlike Millbillillie eucrite which fell in 1960 at Millbillillie, Western Australia The most common class of achondrite meteorite and a member of the HED group for which the parent body is believed to be the asteroid Vesta. Eucrites are basalts – volcani...
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http://www.daviddarling.info/encyclopedia/E/eucrite.html
a basic gabbro consisting mainly of bytownite and augite.
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https://www.infoplease.com/dictionary/eucrite
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