Obsidian (English name: Obsidian) is a common black gem, volcanic lava, amorphous colloidal silica, containing 1%-3% alumina. It is a natural gem, usually mainly black, but also red, blue and green.
Obsidian has been used as an evil spirit and amulet since ancient times.
Obsidian can be processed into handicrafts. In addition, obsidian has the characteristics of gem, and its fracture is shell-shaped and angular.
Obsidian is one of the gems used in Buddhism to make beads and handicrafts. In China's traditional folk customs, obsidian is usually combined with bravery to make various ornaments and ornaments, which can be worn and placed at home to attract wealth and ward off evil spirits.
At present, most obsidian jewelry is produced in China and North America, and the Mexican national stone is obsidian.
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