Black slate or black shale is one of the most commonly used today for all types of flooring and flooring, or for decoration, natural stone bathrooms or even kitchen countertops.
The photographs presented do not imply that their supply is absolutely identical, for example in tonality, since they are natural products, which although carefully selected and elaborated, may be subject to slight variations in shade, granulation or composition.
These variations that nature introduced can not be considered as defects.
