ETIMOLOGY: From the greek jrisos: gold e prasos = leek gold.

CRYSTAL SYSTEM: Trigonal.

PRINCIPLE OF FORMATION: Secondary.

CLASS MINERAL: Oxides, quartz group.

CHEMICAL FORMULA MINERAL ELEMENTS: SiO2 + ( Ni) + ( Mg).

HARDNESS: 6.5 - 7 on the Mohs scale.

FIELDS: Australia.

MINERALOGY: The crisoprasa is one of the ways that the silicon dioxide (SiO2) occurs, commonly called silica. Depending on the content of silicates or hydrated nickel oxide and magnesite, in this case elcolor chrysoprase is lime. The proportion of nickel which often determines the color. The brilliance of this gemstone is vitreous to waxy resin can be also. In terms of translucency, ranging from almost transparent and almost opaque. The color of the cut gems tend to be uniform and evenly distributed, without bands. More irregular coloring is rough stones, especially if they are large. Some stones may have inclusions as black or brown speckled deposits, giving them an appearance of jade.

MYTHOLOGY: Charles IV, Czech-born emperor of the Holy Roman Empire between 1355 and 1378, crisoprasas used to decorate the walls of the chapel of St. Wenceslas in the cathedral of Prague as well as to decorate the chapel of the Holy Cross Karlstein Castle (Czech Republic). The Queen Anne of England Scots (1702-1714) became a major attraction for the crisoprasas, it was used in gold and silver, had a prominent peak during the Victorian era ( 1837-1901) and in the modernist period, when it was used in the design of objects of Art Nouveau.

PROPERTIES: It is said that lemon chrysoprase helps overcome impediments loneliness and helps us to reaffirm life, makes us self-critical, and clever pranksters.

CHAKRAS: Solar Plexus.

ZODIAC SIGN: Taurus, Cancer, Virgo, Scorpio.

USES: Jewelry, collection, decoration, meditation.