Two garnets exhibiting unusually strong changes of color are discussed. Changes in color appearance are observed to occur not only between different light sources but also between reflected and transmitted illumination from the same light source. The gemological properties and chemical compositions of these two stones are noted and compared.
Two garnets exhibiting unusually strong changes of color are discussed. Changes in color appearance are observed to occur not only between different light sources but also between reflected and transmitted illumination from the same light source. The gemological properties and chemical compositions of these two stones are noted and compared.
