onyx marble
banded carbonate rock that forms mainly around hot springs; typically used as a decorative or architectural material or for small ornamental objects
en-US/ˈɑnɪks ˈmɑɹbəl/
en-GB/ˈɒnɪks ˈmɑːbl/
banded carbonate rock that forms mainly around hot springs; typically used as a decorative or architectural material or for small ornamental objects