Tourmaline quartz

Tourmaline quartz means rock crystal with visibly enclosed needle-like tourmaline crystals. The black schorl is found in the tourmaline quartz. Synonyms are hairstone and needlestone.

Larger deposits are found in Brazil and Madagascar.

The tourmaline itself is black. The surrounding quartz is milky-turbid or clear.


Mineral class of oxides
Formula: SiO2 (quartz) + NAFe3(Al,Fe)6((OH)4(BO3)2Si6O18) (tourmaline, schorl).

Mohs hardness: 7
Density: 2.65 - 2.67
cleavage: imperfect, conchoidal fracture
Stroke colour: white
Transparency: transparent to translucent

Healing properties
Helps to release inner spasms and conflicts, enables opposites to be brought into harmony, connects polarities