Product Details Gem Type : Spessartite Weight : 13.98 Cts Size : 10mm X 13.1mm X6.5mm Shape : Cabochon Clarity : Translucent Color : Mandarin Orange Treatment : None Origin : Brazil Description: Spessartite garnet is ideochromatic, meaning that it is colored by a fundamental element in its composition. That element is manganese, which produces an orange color. Take away the manganese, and it would no longer be spessartite. Thus spessartite has only one basic color – orange. Due to its orange to red-orange color, spessartite generally looks best under incandescent light. Spessartite garnet deposits are found in Burma (Myanmar), Brazil, China, Kenya, Madagascar, Sri Lanka (Ceylon), Tanzania and the USA. The most desirable gemstones come from Namibia and are known as "mandarin spessartite".