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2005-05-25 19:19:16

Peridotite is a dense, coarse grained ultrabasic rock, consisting mainly of the minerals olivine and pyroxene. Peridotite is also a group of mantle derived igneous rocks. They all are ultramafic or ultrabasic meaning they contain less than 45% silica and are high in iron and magnesium. Members of the peridotite family include: Dunite - predominately composed of olivine, with minor enstatite pyroxene and chromite. Harzburgite - composed of olivine, enstatite, and minor chromite....

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Word of the Day
logocentrism
  • The analysis of literature, focusing on the words and grammar to the exclusion of context or literary merit.
The word 'logocentrism' is a blend of logo- +‎ centrism.
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