Just a suggestion. Looks like could be Nepherite Jade out of Canada. For a really good color comparison, check out eBay BC Jade - (item offered by member Vietrocks - a 395.00ct/79g slab for $32.95). Lately have seen carvings and jewelry items for sale on internet. A lot of this stuff is mined in Canada and sent to China for carving, etc. Depends on who is selling (and quality of), can be pricey. Another posibility, Maw-sit-sit from Burma (can be very dark green naturally) or lastly, Prehnite (a long shot but possible). This board is really helping me learn. Best of luck.
