Iolite
Composition: (Mg,Fe)2Al4Si5O18
Color: Blue of various tones
Stroke color: white
Hardness: 7-7.5
Syngony: Rhombic
Esoterics: From the group Minerals of the Teacher.
The energies of the stone help to concentrate, develop memory and attention. The deep blue color of the stone calms the mind, expands consciousness. Good for studying and understanding philosophy, immersion in reflection on High truths, for communication with Heavenly guidance.