Pounamu by @Thorvald (El Thorvaldo)

The largest block of greenstone my friend says he's ever seen, on display in a jewellery shop in Rotorua, New Zealand. Pounamu is a nephrite jade quarried from South Island. It is highly prized by the Maori, who consider it a treasure that accumulates prestige (mana); popularly used for jewellery, it has also been crafted into tools and weapons.

Original photo taken May 2014. Submitted to DeviantArt July 2014.