spathic

spath·ic

S0609700 (spăth′ĭk)adj. Having good cleavage. Used of minerals.
[German Spah, Spath, spar (from Middle High German spāt) + -ic.]

spathic

(ˈspæθɪk) or

spathose

adj (Minerals) (of minerals) resembling spar, esp in having good cleavage[C18: from German Spat, Spath spar3; related to Old High German spān chip; see spoon]
Translations
spathique