Electric stone powder is the electrical ishihara ore after removal of impurities, mechanical crushing to obtain powder. After processing and purification of tourmaline powder has high discharge negative ions and far infrared emissivity.Tourmaline is also called ms tomalin.

Item	property
appearance	Uniform color powder,no agglomeration
Density(g/cm3)	0.979-1.009
MFI(g/10min)	15-45
Melting point(°C)	120
Particle size(mesh)	60meshes
Non-volatile matter(%)	≥99.5