Stampeding Horses Sculpture / Jade or Nephrite? - modern Chinese

Found this really great sculpture made of some kind of material and weighing in at a couple of pounds. Measuring 10" x7 " it's rather thin suggesting it may have started out as a 2" thick slab. The back side is a bit flat as well. It's suffered a bit of damage but it still looks beautiful. One of the horses is broken off at the very top which isn't really that obvious until you turn it around. You then can see the remains of a tail on the last horse's flank. A bit of rear leg is also missing on the bottom horse. I was told by the cashier that someone passed on it earlier because it was too damaged and expensive. Oh well their loss...I'll take it ! Not sure what it's made out of. I know for sure it isn't a composite or resin. It has a variety of colors in it. Bits of red, gold, and white but mostly a gray green color. It does appear to be somewhat transparent. It could be nephrite. jade or even something that's not really expensive, but I love it. -Mike-

Thank you Naomi, I didn't think that it was very old either. The stone is pretty hard and dense. I can't scratch it with my fingernail so I don't think it's soapstone. I'd lean more toward the impure jade because of the streaks of color and the heaviness. -Mike-