... hardness, Good Wear Resistance 2.Pure raw material, environment-friendly Stone Name: raw quartz stone balck galaxy Quartzite stone are widely used for interior and ... , green, pink, gery, etc. USAGE :inside or outside wall decoration Stone Form :Blocks,Slabs(Cut to sizes),Tiles Finishing :Polished, Honed ... clean.5) Proof-stain, Anti-Corrosion & Proof-Mold, Anti-Bacterial. raw quartz stone balck galaxy