Moonstone:
 
A stone for “new beginnings”, Moonstone is a stone of inner growth and strength.  It soothes emotional instability and stress, and stabilises the emotions, providing calmness.  Moonstone enhances intuition, promotes inspiration, success and good fortune in love and business matters.
 
Moonstone aids the digestive system, assimilates nutrients, eliminates toxins and fluid retention, and alleviates degenerative conditions of skin, hair, eyes, and fleshy organs such as the liver and pancreas.  It stimulates the pineal gland and balances hormonal cycles, being excellent for PMS, conception, pregnancy, childbirth, and breast-feeding.  Moonstone is also beneficial to men in opening the emotional self.
 
Onyx:

Onyx gives strength.  It promotes vigour, steadfastness and stamina.  Imparts self-confidence, helping you to be at ease in your surroundings.  Onyx banishes grief, enhances self-control and stimulates the power of wise decision-making.  It encourages happiness and good fortune.
 
Onyx treats disorders of the bones, bone marrow and blood.  It is beneficial for teeth and the feet