Q.Is tanzinite the rarest stone in the world. And how much is it ?
A.Jadarite is the rarest mineral based on discoveries to date. It was found in 2006 and has a very similar chemical formula to the fictional kryptonite.
A.Tanzanite is a popular and valuable gem stone that is blue or purple in colour. A carat of the stone is worth up to £380. It was discovered in 1967.
Q.What iS the most fussy blood group. I e . . .which one is the most difficult to find?
A.There are four main groups O, A, B & AB. The newest and rarest group is AB. O is the oldest of the blood groups and has been present since the stone age.
Q.What is the rarest gem in the world
A.A purple-crimson diamond found in 2002 is the rarest gem stone. As it's known as the world's rarest object - the diamond is actually priceless.