Milky-Talc Lump and Talc powder from Vietnam

Chemical Analysis:

+ SiO2: 60 + -2%

+ Al2O3: 0. 96%

+ Fe2O3: 0. 67%

+ CaO: 1. 26%

+ MgO: 30 + -2%

+ Na2O: 0. 05%

+ MnO: 0. 015%

+ Pb: 8ppm

+ As: 1ppm

+ Hg: 0. 1ppm

+ Asbestos: Nil

Physical properties

+ Density: 2. 78g / cm3

+ Hardness: 1 Moh

+ LOI at 1000oC: 6% -9%

+ PH: 7. 5-9

Whiteness: 86-95%

Apperance: Milky white.