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.
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.
Hall, Judy. The Crystal Bible (pp. 283-284).