Verse 12

भूरभून्मृन्मयी काचित्काचिदासीद्दृषन्मयी ।आसीद्धेममयी काचित्काचित्ताम्रमयी तथा

In plain words

One earth was made of clay, another made of stone; one was made of gold, and another likewise made of copper.