A White Carrara marble floor had little white dots all over it. The dots were heavy in high-traffic areas.
A visual inspection showed what are called Stun Marks or Crystal Fractures. (See image)
Stun marks are caused by impact from woman’s high heels or a sharp or heavy object being dropped. The pressure placed from a high heel causes the crystals in natural stone to crush and explode, which results in a small white mark that cannot be felt by one’s fingertip. Certain marble types, such as White Carrara, are prone to this type of damage.
Summary and Solution
In some cases, the white marks can be removed by a stone expert resurfacing the floor. This must be done by a professional stone restoration contractor. Stone Forensics provided the specifications for this work and supervised the implementation of the process.