features of a pumice stone in Indonesia:
- Color is usually gray
- Porous
- Lightweight
- Floating in water
This pumice stone is usually used as a tool rub. Can to rub the heel of a broken foot - rupture so that it can be smooth or can be used to rub the jeans for a slightly whitish color (used by the manufacturer jeans). Therefore, the pumice stone has a pretty good chance as one of the supporting economy in Indonesia.