Tourmaline

Description

Name:Tourmaline;
Properties: transparent and translucent lump with glassy gloss;
Moth hardness:7~8;
Category: silicate - Borosilicate;
Polychroism: dichromatism medium to strong ;
Proportion:3.0－3.2;
Refractive index:1.***1.*4;
Birefringence:0.**8~0.**0;
Main colors: colorless, rosy, pink, red, blue, green, yellow, brown, and black;
Main elements: aluminum, iron, magnesium, sodium, lithium, potassium and other elements;
Features:permanent electricity,activation,narrowing the hydrone water beam,far infrared effect,containing effective microscale minerals;
Application:water treatment, health care products;