Category: Gem Mining

This padparadscha sapphire rough stone is unearthed from Rakwana Mineral, Ratnapura, Sri Lanka yesterday. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium-oxide with trace amounts of elements such as iron, titanium, chromium, copper, or magnesium. Sapphire deposits are found in Eastern Australia, Thailand, Sri Lanka, China, Vietnam, Madagascar, Greenland, East Africa, and in North […]