from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. kaolinite
from the GNU version of the Collaborative International Dictionary of English
- n. A clay of a fine smooth texture, and very sectile.
from The Century Dictionary and Cyclopedia
- n. One of several imperfectly determined minerals, or mixtures of minerals, all of which are hydrous silicates of alumina, and closely related to or identical with kaolin and kaolinite.
litho- + Latin marga marl. (Wiktionary)