Tourmaline is an inorganic chemical compound, complex isomorphic borosilicate mineral group, common silicate crystals containing aluminium and boron cyclosilicate, iron, magnesium, manganese, calcium, sodium, potassium, lithium and fluorine. It is commonly found in magmatic deposits.

Safety
Aluminium can interfere with different biological processes (cellular oxidative stress, calcium metabolism, etc.), so it can induce toxic effects in different organs and systems, and the nervous system is the main target of its toxicity.

What it is used for and where
Cosmetics
Surfactant - Suspending agent. Cosmetic or pharmaceutical suspensions are known to be thermodynamically unstable and it is therefore essential to include in the formulation a suspending agent capable of dispersing any sedimented particulates and reducing the rate of sedimentation. The presence of this agent increases the consistency of the suspension medium and exerts a protective colloidal action with a surfactant action.
Synonyms:

CAS: 1317-93-7