Zoisite

When zoisite was first discovered in Austria in 1805, it is said that there were few pieces of gemstone quality and it did not receive widespread attention.
In 1967, a beautiful blue-colored stone was discovered in Tanzania, and Tiffany & Co. gave it the commercial name ``Tanzanite'' and began selling it on a large scale, which attracted attention.
Tanzanite refers only to blue to violet zoisite, and other shades are mainly distributed as color name + zoisite.

In addition to blue and violet, it comes in a wide variety of colors, including purple, pink, yellow, and gray, and there is even bicolor zoisite that exhibits two colors in one stone.

It is also known for its remarkable pleochroism, where the hue appears different depending on the viewing angle.

Colors other than tanzanite are mainly called zoisite, but opaque pink containing manganese is sometimes called thulite.

●Those with deep and vivid colors ●Those with high transparency without inclusions, scratches, or chips ●Those with beautiful cuts ●Those that are large in size ●Those with noticeable pleochroism are considered to be more valuable.

Tanzanite's value increases due to its popularity, and pink zoisite's price increases even more than tanzanite due to its high rarity value.

The main producing areas are Tanzania, Austria, North America, and Western Australia.

It is said to have been named after the Slovenian mineral collector Zygmunt Zois.