For a discussion of marble and other stones used in Ming and early Qing furniture, see Wang Shixiang et. al., Connoisseurship of Chinese Furniture: Ming and Early Qing Dynasties, vol. I, Hong Kong, 1990, pp. 153-4. Refer, also, to C. Evarts in his article 'Ornamental Stone Panels and Chinese Furniture,' Journal of the Classical Chinese Furniture Society, Spring 1994, pp. 4-26. for a further discussion on the subject.