Zhu sha True Natural Cinnabar  Crystal Gemstone Round Multi-circle Bracelet Cinnabar Bracelet is the bright scarlet to brick-red form. It is the historic source for the brilliant red or scarlet pigment termed vermilion and associated red pigments.

Cinnabar generally occurs as a vein-filling mineral associated with recent volcanic activity and alkaline hot springs. The mineral resembles quartz in symmetry and in its exhibiting birefringence. Cinnabar has a mean refractive index near 3.2, a hardness between 2.0 and 2.5, and a specific gravity of approximately 8.1. The color and properties derive from a structure that is a hexagonal crystalline lattice belonging to the trigonal crystal system, crystals that sometimes exhibit twinning.

Cinnabar has been used for its color since antiquity in the Near East, including as a rouge-type cosmetic, in the New World since the Olmec culture, and in China for writing on Oracle bones as early as the Zhou dynasty. Later in the Song dynasty it was used in coloring lacquerware.