This stone comes in white grey, red or wooden colour. It is very popular in Africa and is available in plenty there. It looks like the "eye of a tiger". It keeps stomach ailments under a reasonable check. It also reduces tensions. It gives extra energies and good stamina. It also bestows the wearer with considerable initative and drive, without which one cannot easily make a mark in this complex world. It is recommended and lucky stone for those having their birth numbers as 2 or 7. It is good for childern suffering from insomnia or those not having proper concentration in studies. It is good for those, who have saturn in retrogression in their natal charts or have tensions or digestive problems. It is also good for financial gains. It is also good for those who may waiver to take decisions.