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rapakivi

noun
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ra·​pa·​ki·​vi | \ ¦räpəˈkēvē \
plural -s

Definition of rapakivi

: a coarse red granite quarried in Finland having curious ovoid ringed feldspars composed of central cores of orthoclase surrounded by a shell of oligoclase and being much used for building in northern Russia

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History and Etymology for rapakivi

Finnish, from rapa dregs, mud, gravel + kivi stone, rock

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“Rapakivi.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/rapakivi. Accessed 20 January 2020.

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