Dragon's Blood Stone

This is a stone that I purchased over 8 maybe 10 years ago. The seller called it "Dragons Blood", which I imagined dragons blood to actually looks like.I don't know if this is a naturally occuring stone or a treatment. I didn''t care, I was fascinated by the coloring. I know how I want to sculpt it.  I'm thinking an olde English wire design or Viking. Problem is I can't decide what metal to use, whether copper,sterling silver or steel. What do you think would work best to show off the stone?

I will post  the finished piece after the drawing for the midwife healers is over.