ETYMOLOGY: The word Jasper comes from the greek term iaspis meaning "spotted stone".
CRYSTAL SYSTEM: Trigonal.
PRINCIPLE OF FORMATION: Secundary.
CLASS MINERAL: Oxides, quartz group.
CHEMICAL FORMULA, MINERAL ELEMENTS: SiO2 + Fe, O, OH, Si.
HARDNESS: 6,5 - 7 on the Mohs scale.
MINERALOGY: Jasper is a microcrystalline quartz, small granular structures, always it contains foreign matter, sometimes in a proportion of 20%, so the variety of jasper, secondarily form penetrating the original solution of silicic acid in argillaceous rocks or sandstones or mixed with plenty of suspended particles, the solidified silicic acid and transformed into quartz sandstone small particles are trapped in jasper, hence its color, drawings and shine.
TO KNOW MORE
Jasper is a mineral that can form almost anywhere, as there are a variety of jasper, these can be classified into three basic colors:
YELLOW JASPER: SiO2 + Fe, O, OH Amarillo, sand color, brown.
GREEN JASPER: SiO2 + Fe, Si green light to dark.
RED JASPER: SiO2 + Fe, or red to red-brown tile.
MYTHOLOGY: In the Middle Ages it was considered the stone of the victors, who imbedded in their swords, as was the case sigifrido wearing a jasper on the hilt of Balmung. The american Indians used the Jaspe ceremonies to bring rain and divination. An ancient Egyptian king, Nechepsus, used to strengthen your digestive tract.
PROPERTIES: It is said that the cobra jasper arouse interest and enthusiasm. Green brings initiative and will to live, stimulates the sense and the capacity for perception and directs our attention to the material world. Green minerals help us deal with "poisons of the spirit", that is to say negative considerations and encourage healthy optimism. Green is indeed the color of hope.
CHAKRAS: Spleen, heart.
ZODIAC SIGN: Gemini.
USES: Meditation, collection, jewelery.