Stone cabochon oval shaped green and off white pink tint unmounted

Vintage stone cabochon Cut and polished, I pulled it from an old necklace that was beyond repair. The stone has muted green color spots that look kind of like moss. The background is off-white with a very slight pink - peach tint. It is oval shaped. It's in good preowned conditon with some minor wear. There is a slight hairline crack, but it is still structurally sound and sturdy. Measures approx 1 9/16" long, approx 39.688 mm. Ships fast! HARJ815NT2L8H lapidary maybe tree agate or jade? not sure what type of stone loose unmounted gem for jewelry