Iolite - India Stone
Iolite is a magnesium iron aluminium cyclosilicate. Iron is almost always present and a solid solution exists between Mg-rich cordierite and Fe-rich sekaninaite with a series formula: (Mg,Fe)2Al3(Si5AlO18) to (Fe,Mg)2Al3(Si5AlO18).
Excellent stone for meditation and astral travel. Helps one grow spiritually in a gentle fashion. Considered a very strong "Shaman" stone and can stimulate clear psychic visions.