Tanzanite from Merelani Hills Lelatema Mountains., Arusha Region, Tanzania ψ On a trip to Taiwan I saw a large dreamstone on display in an antique shop in Taichung, which apparently came from a region in the Yunnan mountains which is famous for them. It was around 3 feet in diameter and was mounted on a carved wooden frame. It had an ethereal like visage and seemed to have hidden depths to it. These dreamstones have been revered since the Tan Dynasty ( 618 - 907 AD ) for their unique appearance and were highly valued by ancient emperors,