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schalstein

noun
schal·stein | \ˈshälˌs(h)tīn\
plural -s

Definition of schalstein 

: a slaty rock formed by the compression and metamorphism of basaltic or andesitic tuff or lava : slaty greenstone

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History and Etymology for schalstein

German, from schale husk, shell (from Old High German scala) + stein stone, from Old High German

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Dictionary Entries near schalstein

schallerite

Schally

schalmei

schalstein

schapbachite

schappe

schapping

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