| 释义 |
schal·stein
\ˈshälˌs(h)tīn\ noun
(-s)
Etymology: German, from schale husk, shell (from Old High German scala) + stein stone, from Old High German — more at scale, stone
: a slaty rock formed by the compression and metamorphism of basaltic or andesitic tuff or lava : slaty greenstone |