The chemical composition of tourmaline is diversified. It is silicate mineral in cyclic annular structure with aluminium.

Tourmaline, Have pyroelectric effects. used for radio, electronic industry, electromagnetic wave protection, sound electric component, etc.

We have stone and powder.

SpecificationGoods	Meshµm	Color	Packagekg	Sizemm
Tourmaline powder	≤75	black	20-1000
Tourmaline		black	50-1000	0-600

For more information, please contact with us.

tourmaline