New vintage jade lotus or leaf large statement pendant necklace

New vintage jade lotus or leaf large statement pendant necklace Unique large pendant! 7 large pointed ovals in the shape of a leaf (? Canadian Maple Leaf or Cannabis? Or lotus flower blossom?) In silver metal setting: 29x40 mm not including bail Shiny silver flat Cable chain: 18” 1.25x2 mm links New vintage c. 1970s. No hallmarks. Pendant: First four pictures are after being polished with toothpaste and warm water. I think it’s silver but no hallmarks. Chain: not original to pendant. Not magnetic. I think it’s a very good silver plate but no hallmarks.