Dumortierite is a stone that promotes inner peace, introspection for spirituality, and comfort. Working with this gemstone brings wonderful peace, spiritual wisdom, and promotes a happier atmosphere. You can use Dumortierite to engage the crown chakra and facilitate communication between the physical realm and spiritual realm. This allows you to connect with the spiritual insight that surrounds you. Dumortierite is an energetic gemstone of many prisms in spirituality.

Dumortierite is a stone of bold blue and black colors.

 

Other information
Its formula is (Al,Fe3+)7(SiO4)3(BO3)O3 (Aluminum, iron, silicon, iron, boron, oxygen). It has a hardness of 7-8 on Mohs scale. Dumortierite has deposits in in Europe, the US, and Africa.

References

"Dumortierite." Mindat - Mines, Minerals, and More. Accessed February 28, 2019. https://www.mindat.org/.