Properties
Mineral group:Tourmaline
Chemistry: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)-(OH)3(OH)
Color: Black
Crystal system: Trigonal
Mohs Scale hardness: 7-7,5
Refractive index: 1,614-1,666
Birefringence: 0,014-0,040
Specific gravity: 2,85-3,35
Other
Schorl is the black varity of Tourmaline and have its own name. Schorl is the most common varity of tourmaline and found on many places.
Read/learn more about Tourmaline under "gemstoneinformation"
Schorl (Black Tourmaline) in Healing
Schorl, also known as black tourmaline, is one of the most powerful protective stones in crystal healing. It is often used to deflect negative energy and provide a sense of security and grounding.
Read/learn more about Schorl – Healing Properties
