Pronunciation: ' mär(- ə )l- ˌ st ō n
Function: noun
Date: 1756
: a rock that consists of a mixture of clay materials and calcium carbonate and often contains kerogen
Pronunciation: ' mär(- ə )l- ˌ st ō n
Function: noun
Date: 1756
: a rock that consists of a mixture of clay materials and calcium carbonate and often contains kerogen
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012