In rare cases zoisite is found in pink and green as well as blue to violet.
Blue green tanzanite.
For richly colored aaa tanzanite 1ct is approximately worth 300 425 per carat.
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The name tanzanite is used for a color variety of zoisite that ranges from blue to bluish purple to bluish violet.
Material that is available today has a mix of yellow and or blue with the green and is not as desirable or as valuable.
Tanzanite showing a noticeble green component will be worth significantly less.
The mineral zoisite naturally occurs in a wide range of colors that include colorless gray yellow brown pink green blue and violet.
This material was similar in color to chrome tourmaline and was very attractive and quite valuable.
Igi certified 5 grade d block aaaaa tanzanite oval bluish violet 1 250 00.
Kilimanjaro in 1967 tanzanites show both dramatic color change and pleochroism in natural light tanzanites can appear an almost sapphire blue.
Before the discovery of tanzanite the known varieties of zoisite made little impact on the gem market.
About twenty years ago vivid green tanzanite hit the market for a very short time.
Tanzanite is classified as a type i gemstone by gia meaning that tanzanite specimens are normally eye clean.
The trade has taken to calling other colors of gem quality zoisite fancy tanzanite or the color followed by the name tanzanite hence green tanzanite.
Green tanzanite is actually a green zoisite.
2ct sizes reach 450 650 per carat.
Tanzanite is the blue and violet variety of the mineral zoisite a calcium aluminium hydroxyl sorosilicate caused by small amounts of vanadium.
From shop grangem.
Tanzanite belongs to the epidote mineral group.
3 carats and up will reach 650 750 per carat.
All gemstones belong to a species first and then carry a variety name.
So clarity is rarely a problem with tanzanite.
The blue variety of the mineral zoisite is called tanzanite.
The current price and value for tanzanite changes based on the weight.
Favorite add to 1 94ct pear shape untreated green tanzanite from tanzania grangem.
The saturation is also highly variable with some stones quite pale.
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.
Tanzanite gemstone chip stone bead 36 inch strand genuine blue and green tanzanite gemstone psc61 fallinlovegems.
Discovered in the shadow of mt.
Make offer rare fancy green tanzanite gem natural zoisite tanzania untreated blue bi color 7 32 ct.
