(n.) 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's English dictionary. Английский словарь Webster. 2012
(n.) Argillaceous schist or slate; clay slate. Its colors is bluish or blackish gray, sometimes greenish gray, brownish red, etc.
Webster's English dictionary. Английский словарь Webster. 2012