Nov 14, 2015· Tanzanite is an extra ordinary and one of the most popular semiprecious stones. Its is a blue variety of the zoisite gemstone. Tanzanites are considerably rare with many positive post tells you all you need to know about buying tanzanites in addition to being able to differentiate between their different qualities.
"Tanzania gets just 5 percent of revenues from the global tanzanite trade all the rest of this precious gemstone benefits other people abroad. This is unacceptable." Tanzania overhauled the legal, regulatory and fiscal framework governing the mining sector with three new laws in July, sending stock in foreignowned mining companies plunging.