Tiger eye stone has a rich yellow and golden brown stripes, with a fine golden lustre when polished. It is basically a variety of crystalline quartz formed by alteration of an asbestos mineral (it being replaced by silica) known as crocidolite.Tiger-eye necklace.6mm in diameter.18inch in length.white gilded lobster clasp. Unique design will be belonging to this kind of necklace. It is generous and is very popular with the individual persons. Charming eyes.