Type-C Jade Classification
Dyed, Bleach and Impregnated Jadeite
type-c jadeite, type-c jade, dyed, bleach and impregnated jadeite
Appearance, RI, spectrum, SG and magnification. The detection of dyes might require advanced lab testing. Scratch test can be used but is destructive.
Dyed jadeite stones will have a broad band in the red area of the spectrum and natural jadeite colored with chrome will only have 3 lines in the yellow, orange and red.