Until recently, only emerald, ruby and sapphire were officially called precious gems. Everything else was called semi-precious. The precious categorization is a reference to value: a really fine ruby, ...

It's been 18 years since Nintendo first introduced humanity to a world of adorable monsters that would capture the hearts of millions and grow into the sort of media juggernaut that usually involves a ...

Three of the four priciest gems in the world have been found in Kenya. In a prospect that places mining sector ahead of tourism, tea and coffee combined, mineral dealers say Kenya has emeralds, ...