The PRECIOSA Terra Intensive collection involves surface finishes in 11 shades on chalk ranging from clear yellow to chocolate brown. These colours are made using ecologically friendly water-based pigments (not synthetic colours) and could react adversely when subjected to aggressive acids which could be found in some chemicals, the alcohol in hand sanitizers but mainly in human perspiration which is unavoidable.

The PRECIOSA Terra Intensive collection involves surface finishes in 11 shades on chalk ranging from clear yellow to chocolate brown. These colours are made using ecologically friendly water-based pigments (not synthetic colours) and could react adversely when subjected to aggressive acids which could be found in some chemicals, the alcohol in hand sanitizers but mainly in human perspiration which is unavoidable.