Dubbed the "queen of fruits", the mangosteen is native to Malaysia and Indonesia, although it is now found throughout South-East Asia, where it is a favorite almost everywhere. The mangosteen is a small spherical fruit about the size of a tangerine, but with a skin that is very dark purple, and quite thick, reaching 10 millimeters in thickness. Inside is a soft white sectioned middle. The edible sections may or may not contain a small seed. The taste is quite sweet, but with a hint of sourness.