Obsidian (English name: Obsidian) is a common naturally formed black gemstone, also known as “Dragon Crystal” or “Ten Victories Stone”, mainly composed of silicon dioxide, usually black in color.
Obsidian can be processed into handicrafts. In addition, obsidian has the characteristics of glass, and after being broken, its cross-section is in the shape of a broken shell, which is very sharp. Currently, most obsidian jewelry is produced in Central and North America, with Mexico’s national stone being obsidian.
Formation process
Obsidian is a natural glass formed by the sudden cooling of magma flowing from volcanic lava. It belongs to amorphous gemstones and its main component is silicon dioxide (SiO2).
During the generation process, due to the rapid decrease in temperature around the lava flow and the fastest cooling rate, magma containing silicon dioxide quickly condenses into blocks. Obsidian usually appears around the lava flow or near the seaside at the foot of volcanoes. Due to its unique formation process, obsidian crystals also contain 1% -2% moisture.
proportion
The proportion of ghost fairy red eye obsidian is only 0.3%, which is a rare species.
The proportion of ghost fairy blue eyed obsidian is only 0.5%, which is a rare variety.
Origin distribution
Obsidian is mostly distributed in areas that have experienced volcanic activity, such as Hawaii in the United States, Java Island in Japan, and Indonesia. Other areas include Iceland, Hungary, the Lipari Islands in Italy, the former Soviet Union, Mexico, Ecuador, and Guatemala.
Dark black single eyed obsidian is distributed in Arizona and New Mexico in the United States, and is known as the “Tears of the Apache” by Native Americans.
Most obsidian jewelry is produced in Central and North America, and is the national stone of the United Mexican States.
