ETYMOLOGY: From "agate" name comes from the river Achates (Dirillo currently located south of Sicily, Italy), where Plinio found the first stone.

CRISTAL SYSTEM: Trigonal.

PRINCIPLE: Primary.

MINERAL CLASS: oxide, quartz group.

CHEMICAL FORMULA, MINERAL ELEMENTS: SiO2 + Al, Ca, Fe, Mn.

HARDENESS: 6.5 7 on the Mohs scale.

DEPOSITS: Brazil, Uruguay (Artigas), Argentina, Morocco, Czech Republic, Madagascar, India, United States.

MINEROLAGY: Hydrothermal origin, volcanic rocks poor in silicon, in the slits formed by gas bubbles cools hot lava silicic acid solutions, which on cooling solidify forming quartz deposited in layers on the walls of the grooves.

MYTHOLOGY AND TRIVIA: In India, Nepal and Tibet used the straight-banded agate and carved to make amulets, these people called it the agate stones of science with it the Indians thought they could cure eye diseases and agates whose interior was filled with water (stone eagle) used them as protectors of pregnancy. The Egyptians used to counter agates bites of spiders and scorpions, these people also put agate in the eye sockets of mummies. In Islam agate ring ensures a long life.

: Strengthens the interior, the kindness and loyalty carelessness, it promotes tolerance and patience, provides security, peace and tranquility, is said that withe mineral protect  during the pregnancy and would enhance awareness of self. The minerals white provide fullness and perfection.

CHAKRAS: Crow.

ZODIAC SIGN: Taurus, Aquarius, Capricorn.

USES: Jewelry collection, meditation, decoration.