ABSTRACT
Wood often shows visible colour anisotropy, appearing different when seen from different angles with respect to lighting and fibres direction. This is commonly known as chatoyance, or chatoyancy, and it is invisible on some wood species while being evident on other. Data from about 12,800 measurements on 218 species are hereby reported and compared against basic brightness showing that perceptual chatoyance reaches its peak in moderate brightness species and that chatoyance mostly affects wood brightness rather than its colour. Finally, results are compared with other parameters such as density, trunk size, origin continent and botanic family showing some correlation.
Disclosure statement
No potential conflict of interest was reported by the author(s).