YANGON, Myanmar (AP) — An enormous jade boulder that could weigh up to 50 tons has been found half buried in restive northern Myanmar, and the government has sent troops to protect it, a state minister said Friday.

The raw jade was discovered by villages and small scale miners in the gem-rich region of Hpakant just over a week ago, but since it’s still half buried, it’s impossible to know its exact size, said Lajun Ngan Seng, the minister of resource-rich Kachin state.