rose gold necklace amazon The formation and origin of chalcedony and agate

cryptocrystalline quartz jade. Chalcedony and agate have a very long history. Environ 100 Il y a des millions d'années, underground magma spewed out due to the changes in the earth’s crust. When the lava cooled, steam and other gases formed bubbles, and the bubbles were sealed when the rock was frozen to form many holes. Après une longue période, the hole is immersed in a silica-containing solution to condense into silica gel. En même temps, the fusible components of the iron-containing rock enter the silica gel, and finally the silica crystals become chalcedony and agate. Chalcedony and agate are the same minerals and can be used as a kind of gem. The only difference is that agate has a band-like structure, while chalcedony does not.

Calcédoine, the blood-red chalcedony, has a dark green background with red dots. Legend has it that when Jesus was nailed to the cross, blood dripped on the green stone.

The varieties of chalcedony are divided into green chalcedony, light green chalcedony, blood chalcedony (blood drop stone) et ainsi de suite. The quality of green chalcedony and green chalcedony is the most valuable.

There is a kind of chalcedony with more impurities called jasper, which mainly contains clay minerals and is rich in color.

Agate is one of the seven treasures of Buddhism. It is said that there arethousand kinds of agate and ten thousand kinds of jade”. It is colorful and beautifully decorated. It has been used as a talisman against evil since ancient times. It symbolizes friendly love and hope and helps relieve stress and fatigue. , Turbidity and other negative energy.

There are many sources of high-quality chalcedony and agate in the world, such as Australian green chalcedony (Jade australien) and Brazilian agate. China’s agate production and varieties are very rich, and there are many producing areas. The most famous producing areas are Liaoning, Mongolie intérieure, Heilongjiang, Yunnan, Hebei, Ningxia, Xinjiang, Jiangsu, etc..

Agate can be divided into the following varieties according to color and morphological characteristics: onyx, red onyx, moss agate, landscape agate, fire agate, water gall agate, the famous NanjingYuhuashiis a kind of agate with concentric structure .

 

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