Jathika Namal Uyana in Sri Lanka is the largest ironwood forest and home to rose quartz in Asia, an extremely rare forest that was replanted with ironwood trees in the eighth century AD, with an area of more than 260 acres, and according to the results of archaeological research, the history of rose quartz that was found It is more than 550 million years old, and this area was a haven for Buddhist monks during the reign of King Devanampiyatissaâ in the eighth century, and later was used as a prison camp where the punishment was to plant trees.