Noah Webster
Lithomarga
LITHOMAR'GA,
LITH'OMARGE, noun [Gr. stone, and Latin marga, marl.]
An earth of two species, friable and indurated, more siliceous than aluminous, distinguished by its great fineness and its fusibility into a soft slag.
LITHOMAR'GA,
LITH'OMARGE, noun [Gr. stone, and Latin marga, marl.]
An earth of two species, friable and indurated, more siliceous than aluminous, distinguished by its great fineness and its fusibility into a soft slag.