Tourmaline blue (Indicolite)

Origin: USA, West Asutralia, Sri Lanka
Hardness: 7–7,5
Colour: light blue to blue-green

Proberty and effect:
It supports the lungs and the immune system as well as the brain, is used for chronic neck pain, against insomnia and night sweats, for nasal sinus infections and bacterial infections, helps burns to heal better.