ETYMOLOGY: It comes from the word in spanish, piedra de ijada = stone against kidney pains.

CRYSTAL SYSTEM: Monoclinic.

PRINCIPLE OF FORMATION: Tertiary.

CLASS MINERAL: Inosilicates.

CHEMICAL FORMULA, MINERAL ELEMENTS: NaAl [Si2O6] + Ca, Fe, Mg, Mn.

HARDNESS: 7 on the Mohs scale.

FIELDS: Myanmar, Tawmaw near Mogok in Burma, Longchuan area in the province of Yunnan in China, some parts of the mountains of Tibet and Kazakhstan, Japan, Cloverdale California USA, Sierra de las Minas in Guatemala and the United Guerrero, Oaxaca, Chiapas in Mexico, Russia, Italy, the middle East.

MINERALOGY: Jade is originally a generic term that encompasses jadeite and nephrite, two very similar minerals in appearance and properties; Jadeite is mainly formed by metamorphism of basic rocks, pyroxene is a translucent color as in this case yellow, also it exists in green white and fibrous texture.

MYTHOLOGY: According to Chinese mythology, the jade is dried dragon sperm. For Pounamu is the Maori name of green nephrite that occurs along the west coast of New Zealand and which often make tikis and traditional Maori hei weapons like meres.Ya in 3000 B.C. jade was known in China as "yu", the "real gem". In the long history of art and culture of the Chinese empire, jade has always had a very special, comparable with that of gold and diamonds importance.

PROPERTIES: Jade is a symbol of purity and serenity, is associated with the heart chakra, increases the love and care, it is a protective stone, brings harmony, is believed to bring good luck and friendship, stimulates the sense and the ability of perception. Green minerals help deal with "poisons of the spirit", ie a negative considerations and promote a healthy optimism. Green is actually the color of hope.
 

CHAKRAS: Heart.
 
ZODIAC SIGN: Taurus.

USES: Jewellery, decoration, meditation, lucky charms, tools, masks.