The charm of black onyx!
Black agate belongs to a major component of agate is also silica, pure black whole piece of agate is relatively rare, mostly due to uneven organic matter content and present different shades of strips, the texture is very pure when gray, if it contains a variety of pigment ions when it appears red, black, blue, green and other colors, and has a dark or light ring belt structure.
Agate as one of the seven treasures of Buddhism, itself has the effect of warding off evil spirits, can bless people's peace, but also improve self-confidence, become strong, there are always some blindfolds on the market want to deceive consumers, such as black plastic impersonating black agate, painted with black glass, etc., we must pay attention to it when buying.