Green Tiger's Eye

The colour is produced by dyeing, so green tiger's eye has no natural deposit of its own. Its base material, tiger's eye, comes mainly from South Africa; other recorded sources include Western Australia, India, Myanmar, Sri Lanka, Brazil, China, Namibia and the United States. Where the stones are dyed is not documented in the sources consulted; Pascle gives South Africa and Namibia as origins of its material.

Green tiger's eye keeps the fibrous structure and moving chatoyant bands of tiger's eye. The gemmologist R. Webster noted that many tiger's eye cabochons are stained and that vivid greens, blues and blacks are obviously stained; natural hawk's eye, the unaltered blue form, is only grayish to occasionally greenish blue. GIA notes that a qualified gemologist can detect dyed gems in most cases. Fibre-optic glass can imitate the chatoyancy of these materials but is a man-made product.

Because the colour comes from dye, keep the stones away from solvents such as alcohol or acetone, which can remove many dyes, and from prolonged sunlight, which can make some dyes fade. Jewelers commonly recommend cleaning tiger's eye only with a polishing cloth rather than alcohol, steam or an ultrasonic cleaner, and note that it chips or breaks more readily than many gems when struck.

The Japanese retailer Pascle says that green tiger's eye shares the meanings it gives to all colours of tiger's eye: because the "tiger's eye" was traditionally thought to see through everything, the stone is said to sharpen its wearer's insight, and the retailer associates it with luck in work and money.