What color crystal can protect your health?

Considering your birthday and zodiac, it is recommended to wear dragonflies, obsidian, tourmalines and agates. It is said that black can ward off evil spirits, so it may be better. If it is to be transported for use, it is recommended to wear it close to the body, and it is best to keep it in contact with the skin. Above, except tourmaline, wear the left hand and the other right hands.