Serpentine(The story of “Young Goodman Brown”) by Nathaniel Hawthorne
-It can be considered as a snake.
-It can be mottled or spotted like a snake skin
-A thing in the shape of a winding curve or line, in particular
He had cast up his eyes in astonishment, and looking down again, beheld neither Goody Cloyse nor the serpentine staff, but his fellow-traveller alone, who waited for him as calmly as if nothing had happened.
It is something that looks like a rock or a stone and feels like snake skin. It can come in many different shapes or forms, it looks very earthly and may be green.
Source: www.google.com search engine “Serpentine”
