Black Tourmaline is not a single mineral but is made up of a group of minerals. It contains elements such as aluminum, iron, magnesium, sodium, lithium or potassium.
Tourmaline comes in a wide variety of colors but the most common is black.
Black tourmaline can be used for protection and blocking negative energy.
The listing is for one rough black tourmaline with traces of quartz. You will receive the exact product from the photos. The approximate measurements are 2.25 inches by 2.25 inches.
Please note: surface "imperfections" may be present when dealing with natural crystals. All sales final, please read shop policies before purchasing.