Product Attribute
Chemical Composition: NaMg3(Al,Mg)6B3Si6O27(OH)
Place of Origin: Hebei, China
Product name: Tourmaline Powder
Color:: Black, transparent, green, pink, red, blue, yellow, etc
Crystal system:: Triangular crystal system
Hardness (Mohs scale): 7 to 7.5
Specific Gravity: 3.03~3.25g/cm³
Density: 2.82 to 3.32g/cm³
Refractive Index :: 1.635-1.675
Selling Units: Single item
Single package size: 30X20X3 cm
Single gross weight: 1.500 kg
Main Products: Mica, Kaolin, Iron, Oxide