Marble sample from Namibia: Starting from two crevices filled with light-colored crustal limestone, the tubes have grown downwards in a parallel arrangement. Credit: Cees Passchier Professor Cees ...
Portland, Ore., USA: The source of marble for a statue of Apollo on the Greek island of Delos has been a mystery to art historians and archaeologists for decades. The stone’s chemistry pointed ...
Finally, the specific pollutants in the air that are responsible for the discolouration of the white marble of Taj Mahal have been identified. Particulate carbon and fine dust particles that are ...