Geologists at the Malyshevsky Mine in the Sverdlovsk Region have found a one-piece ... It processes 93,700 tonnes of rock a year to produce an annual 1.5 kilograms of emeralds, 30 kilograms ...

Zion National Park is known more for its towering rock formations than its gushing waterfalls, but one area where you can catch a glimpse is the Emerald Pools. Found nestled between striking peaks ...