Sunstone is a joyful, light-inspiring stone. It instills joie de vivre and good nature and heightens intuition. If life has lost its sweetness, Sunstone will restore it and help you to nurture yourself. Clearing all the chakras* and bringing in light and energy, this stone allows the real self to shine through happily. Traditionally it linked to benevolent gods and to luck and good fortune.
Emotionally, Sunstone acts as an antidepressant and lifts dark moods. It is particularly effective for seasonal effective disorder, lightening the darkness of winter.
HEALING Sunstone stimulates self-healing powers, regulates the autonomic nervous system, and harmonizes all the organs. It treats chronic sore throats and relieves stomach ulcers. Exceptionally good for seasonal effective disorder, Sunstone lifts any depression. Sunstone can be gridded around the body and relieves cartilage problems, rheumatism, and general aches and pains.
Hall, Judy. The Crystal Bible (pp. 283-284).