Black Tourmaline in Quartz Tower

Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium. Tourmaline is classified as a semi-precious stone and the gemstone can be found in a wide variety of colors.

Quartz is a chemical compound consisting of one part silicon and two parts oxygen. It is the most abundant mineral found on the Earth's surface, and its unique properties make it one of the most useful natural substances.