A miner in the mountains of eastern Afghanistan poured water over a block of jade, exposing the green stone that is part of ...

It’s rarer and pricier than the other jade gemstone variety, with one 175-tonne lump found in 2016 being valued at $170 million. Nephrite is the second, and it’s more common and more widely ...

Nephrite, a valued form of jade, is primarily composed of the mineral tremolite and is known for its beautiful green and white colors. The geochemistry and formation of nephrite deposits are of ...

Every sale is a gamble. Chunks of ­jadeite—as opposed to the more common nephrite, which is considered an inferior jade—resemble mud-­colored eggs. Buyers try their best to divine what’s ...