What kind of crystal is best for the body? What crystal nourishes the lungs?

Hair crystal, topaz, green ghost crystal, amethyst and pink crystal (hibiscus crystal) are all very good.

Among them, the main function of powder crystal/hibiscus crystal (love crystal) is to promote marriage and enhance feelings. Its pink light can improve interpersonal relationships and gain popularity. Like amethyst, it can lubricate the feelings between men and women and bring a beautiful marriage. At the same time, developing heart chakras helps people to pursue love, enhance contact, control cardiopulmonary function, and contribute to the health of circulation and respiratory organs. But I personally prefer amethyst.