ETYMOLOGY: Because of its similarity, which provide amphibole fibers, the eye of the animal.

CRYSTAL SYSTEM: Trigonal.

PRINCIPLE OF FORMATION:  Tertiary.

CLASS MINERAL: Oxides group of quartz.

CHEMICAL FORMULA, MINERAL ELEMENTS:  SiO2.

HARDNESS: 7 on the Mohs scale.

FIELDS: South Africa, India, Mexico, Australia, United States (California).

MINERALOGY: The eyes of ox is obtained by heating the tiger eye, resulting in dehydration of the impurities of iron oxides and crocidolite fibers where altered to limonite form hematite, this reddish this material is obtained retains the cat eye effect of the original stone.

MYTHOLOGY: The eye of ox was a favorite stone of the thieves, giving it the power to secure the victory in the game.

PROPERTIES: It is said that the porthole provides vital force, helps to overcome the difficulties, is an ideal place to strengthen willpower glass to help us admit our responsibilities, the porthole provides a powerful energy, dense and deep ; so it is great for anything related to Mother Earth.

CHAKRAS: Sacral, solar plexus, throat.

ZODIAC SIGN: Leo.

USES: Jewellery, meditation, collection.