Aragonite is said to be good for that:
Aragonite
Stills the mind before meditation, centring, grounding. Balances yin/yang. Good for past-life exploration, spiritual development, spiritual communication, insight into problems. Transforms geopathic stress.
Promotes patience, self-discipline, problem solving, tolerance, reliability, concentration, studying, mental clarity, acceptance, truth, stability, perception, vitality & stamina, self-confidence, pragmatic approach to life.
Alleviates burdens of responsibility, anger, moodiness, emotional stress, impatience, oversensitivity, nightmares, sleepwalking, restlessness, nervousness when dealing with others, hypersensitivity, frayed temper, jagged nerves, procrastination.
Good for eyes, central nervous system, brain, heart, bone structure, skin, immune system, teeth, circulation, joints, ovaries, muscle activity, prostrate gland.
Used to help with combating chills, hair loss, wrinkles & hard skin, general aches & pains, stomach problems, ovarian cysts, muscle spasms, broken bones, eczema, psoriasis, digestive complaints, lower back pain, wound healing, flu.
Use elixir as a "spring tonic".
Useful for healers - hold before a session