Quartz XL Talisman
Clear Quartz is by far the most versatile and multidimensional stone in the mineral world. Unlike most other stones with relatively fixed properties, it is said that clear quartz can be 'programmed' by one's focus intention to assist one in achieving a goal. Clear Quartz is also a stone of light, bringing heightened spiritual awareness to whoever wears, carries, or meditates with it. Clear Quartz can be used to amplify the energies of other stones or a group of stones. It can be used for almost any metaphysical purpose.
You can see a little rainbow on the second photo!