Blue Green Tanzanite

Green tanzanite is actually a green zoisite.

Blue green tanzanite.

Favorite add to 1 94ct pear shape untreated green tanzanite from tanzania grangem. Tanzanite belongs to the epidote mineral group. 3 carats and up will reach 650 750 per carat. The blue variety of the mineral zoisite is called tanzanite.

Tanzanite is only found in tanzania in a very small mining area approximately 7 km 4 3 mi long and 2 km 1 2 mi wide near the mererani hills. From shop grangem. The current price and value for tanzanite changes based on the weight. Before the discovery of tanzanite the known varieties of zoisite made little impact on the gem market.

So clarity is rarely a problem with tanzanite. Igi certified 5 grade d block aaaaa tanzanite oval bluish violet 1 250 00. The name tanzanite is used for a color variety of zoisite that ranges from blue to bluish purple to bluish violet. About twenty years ago vivid green tanzanite hit the market for a very short time.

The mineral zoisite naturally occurs in a wide range of colors that include colorless gray yellow brown pink green blue and violet. Make offer rare fancy green tanzanite gem natural zoisite tanzania untreated blue bi color 7 32 ct. Material that is available today has a mix of yellow and or blue with the green and is not as desirable or as valuable. In rare cases zoisite is found in pink and green as well as blue to violet.

For richly colored aaa tanzanite 1ct is approximately worth 300 425 per carat. In fluorescent light they may appear more violet or amethyst like. 2ct sizes reach 450 650 per carat. Discovered in the shadow of mt.

Tanzanite is classified as a type i gemstone by gia meaning that tanzanite specimens are normally eye clean. Although some refer to these colors as pink and green tanzanite gia calls them pink and green zoisite. Tanzanite is the blue and violet variety of the mineral zoisite a calcium aluminium hydroxyl sorosilicate caused by small amounts of vanadium. This material was similar in color to chrome tourmaline and was very attractive and quite valuable.

But the color range can be quite wide since tanzanite occurs in gold green and violet as well as blue. The saturation is also highly variable with some stones quite pale. 5 out of 5 stars 74 629 74 629 reviews 7 29. Tanzanite showing a noticeble green component will be worth significantly less.

All gemstones belong to a species first and then carry a variety name.