Chalcedony is a microcrystalline type of quartz that exhibits a trigonal or monoclinic crystal system. It may be semi-transparent to translucent and occurs in a wide range of colors. The pure form of these stones are also known as Carnelian or Sard.
Chalcedony symbolizes generosity, balance, vitality, energy, strength, kindness, peace, endurance, stamina, and harmony.
Let us learn more about Chalcedony.
Chalcedony is a natural form of Silicon Dioxide that is not scientifically its own mineral. Rather, it is a microcrystalline form of Quartz. It is the zodiac stone for the people under the Gemini zodiac sign. These stones help to balance and open up the throat chakra. It enables the wearer to get rid of negative traits, heighten self-confidence, enhance communication skills, aid with emotional balance, and alleviate self-doubt.
The origin of the word "Chalcedony" is unknown and quite complicated. Many believe that it is derived from the Latin word "Chalcedonius" while others believe that it is derived from the town Chalcedon in Asia Minor. The Latin word "Chalcedonius" has appeared in Pliny the Elder's Naturalis Historia as a word for a translucent kind of Jasper. Many seals and jewelry of these stones have been found that dates back as early as 1800 BC.
Most of the Chalcedony can be found in weathering volcanic and sedimentary rocks. These stones can also be found in igneous and metamorphic rocks but they are very rare. At relatively low temperatures, it forms from watery silica gel when silica is released by the weathering of rocks that are initially void of silica.
The chemical formula of Chalcedony is SiO2 (Silicon Dioxide). These stones have a hardness of 6-7 according to the Mohs scale and they have a waxy to dull luster.
The price of Chalcedony can reach up to $100 according to its color, cut, and quality.
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