Shiver-spar
Pronunciation : Shiv"er-spar`
Part of Speech : n.
Etymology : [Cf. G. schiefer-spath.] (Min.)
Definition : Defn: A variety of calcite, so called from its slaty structure; -- called also slate spar.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder