noun argillaceous schist or slate; clay slate. its colors is bluish or blackish gray, sometimes greenish gray, brownish red, ·etc.
ARGILLITE
Meaning of ARGILLITE in English
Webster English vocab. Английский словарь Webster. 2012
noun argillaceous schist or slate; clay slate. its colors is bluish or blackish gray, sometimes greenish gray, brownish red, ·etc.
Webster English vocab. Английский словарь Webster. 2012