Ruby is a red coloured variety of corundum, which is an aluminum oxide mineral. It has a hexagonal crystal system and a hardness of 9.
Zoisite is a calcium aluminum silicate mineral. It has an orthorhombic crystal system and a hardness of 6.5 - 7.
Metaphysically, the combination of ruby with zoisite is a truly fortunate occurrence. The green zoisite radiates energies of growth and fertility and is said to strengthen the neural and energetic connections between the brain and heart.
Ruby is known as the stone of life force, courage and passion. It is said to stimulate the root chakra and provide an infusion of vitality, giving one a feeling of rejuvenation and enhanced enthusiasm for life.
The combination of ruby and zoisite stimulates and harmonises the root, heart and third eye chakras, as well as enegises one's body and providing them with a sense of well-being.