rapakivi
noun
ra·pa·ki·vi
\¦räpəˈkēvē\
Definition of rapakivi
-s
: 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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Origin and Etymology of rapakivi
Finnish, from rapa dregs, mud, gravel + kivi stone, rock
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