A rare and fairly modern gem only found in East Africa, Tanzanite (named after Tanzania, where it was first unearthed and is still most often mined) was only discovered in the middle of the last century. It most often appears as a blue-violet gemstone that possesses the unique quality of taking on different shades when viewed from different angles: blue to violet to burgundy and back. When mined, its initial appearance is generally a reddish brown, but Tanzanite is usually heat-treated to enhance its ultimate shimmering, saturated blue hue. Tanzanite has a perfect cleavage in one direction, and when cut well, it can hold many shapes. Not too long ago, Tanzanite was inducted into official gem lore as one of December’s three official birthstones, along with Zircon and Turquoise.