natural black tourmaline

Product

tourmaline

Shape

Powder ,granulate ,ball,lump

Size

10-20mesh 20-40mesh 200mesh 325mesh, 800mesh

1-2mm3-5mm5-8mm ,etc

Color

Most commonly black, but can range from brown, violet, green, pink, or in

a dual-colored pink and green,white ,gray ,etc

Purity

90-98%

Application

textile, paint, health products, plastics, silica, ceramic radio industry, jewelry,filter, health care,etc

MOQ

1MT

Payments terms

T/T L/C

Element

Percent by weight (%)

SiO₂

37.05

Al₂O₃

29.8

MgO

8.05

CaO

1.18

K₂O

0.09

FeO

8.33

NaO₂

1.19

Cr₂O₃

0.22

B₂O₃

10.16

TiO₂

0.44