Interesting pounamu. It looks south westland but thats not a usual spot for gold miners.
Jadite is the third variety but you don’t get that in NZ. Then there are a dozen or so varieties of nephrite I.e inanga(the whitebait), kokopu (a spotted galaxiid), totoweka (the blood of the weka) and my favourite kahurangi. If anyone needs a stone confirmed just PM me, i do a bit of carving including gold inlaid into pounamu. Have carvings in boardrooms, China, Sweden and Hawaii.