Oval Shape Tanzanite Gemstone is available in trichroic colour and it shows different colours when viewed in different directions. Shree Prakash Gems manufactures Oval Shape Tanzanite Gemstone. Shree Prakash Gems also manufactures Tanzanite gems in different shapes. Oval Shape Tanzanite Gemstone is very special and unique. Its blue colour, which shimmers in a slightly purplish blue, is magnificent indeed. Tanzanite is in fact a blue variety of zoisite gemstone. The hydrated calcium aluminium silicate miner achieves only hardness 6.5 to 7 on the Moh`s scale, and is thus not very resistant. Therefore it should be worn with care, never be cleaned by ultrasonic method and never come into contact with acids.
