ophite
/ˈōfīt
/noun Geology
A green rock with spots or markings like a snake that can be either eruptive or metamorphic; serpentine.The floor is made of chalcedony, alabaster, porphyry, ophite and simetite.
Origin
Mid 17th century: via Latin from Greek ophitēs 'serpentine stone', from ophis 'snake', + -ite1.