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Xenolithic adj. Geological descriptive terminology of a foreign, rocky material that has fallen into, or become embedded into, magma before it solidifies. Much later, when seen in microscopes or visible ground exposures, the appearance is strikingly distinctive; often of a different color or texture when compared to the surrounding material. Thus,xeno meaning strange or foreign or alien, and lithic, meaning rock or rock-like substance, was combined to describe these aberrations. The word xenolithic is now used as an adjective or adverb to describe a substance or article or situation or action that is strikingly out of place or extremely unexpected based upon common experience and expectations.
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