Metal Art, Jute & Acrylic. I like that up close the "rock" area is pocked and indeed looks as if a stone once sat there.  I had a stone that shape I wanted to put on a plate but I think it  requires more imagination not having it there.  When I see this plate I feel like I just missed seeing it, that it disappeared in a fleeting second. Wired to hang/looks great on a shelf.