Chalcedony is formed in caves with low temperature and low pressure, hydrothermal veins, hot spring deposits, clastic deposits and weathering crust of ejected rocks. Some chalcedony tuberculosis will contain water and bubbles, which is very interesting. Its physical properties are the same as those of the time.
Chalcedony is generally used as the raw material of high-grade handicrafts for carving creation because of its rich colors and thorough texture. Personal ornaments such as bracelets, necklaces and pendants are also common.
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1, carnelian
The Carnelian, also known as Sardon stone or Mecca stone, is also spelled "carnelian" in English and is produced in Tibet Plateau. The English name comes from the Latin "carne" (flesh and blood), which means it is orange-red. Red chalcedony is translucent chalcedony, with delicate texture, crystal clear, pure and heavy color, high hardness and crisp and melodious sound when tapped.
2. Blue chalcedony
Blue chalcedony is widely used as an ornament in colored gems. It is said that the highest quality chalcedony was found in Carcy, ancient Greece, hence its name.
Like other colored gems, chalcedony has its own unique symbolic significance. People think that blue chalcedony can give the wearer a soft heart and help to adjust his mood.
3. Black chalcedony
Black chalcedony is the most common color in chalcedony. Because of its relatively low temperature, it contains a lot of other mineral elements. Black chalcedony is purplish black and dark black because it contains more iron, potassium and selenium compounds.
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