Types of Amber One method of classifying amber is by color and degree of transparency. This criteria correlates to an optical classification of amber varieties. The degree of transparency varies in amber from clear to cloudy.
Clear amber is transparent and usually ranges from pale yellow to dark reddish yellow.
Fatty amber does not necessarily imply a green color. Fatty amber has tiny bubbles, suspended dust particles, and is usually a translucent, yellowish color resembling goose fat or also compared with the look of whipped honey. Green amber has tiny bubble inclusions and suspended particles, but it does not have the yellowish appearance of fat. The green color probably results from decaying organic matter in a marsh environment. Bone or osseous amber is whitish yellow or brown in color, opaque and looks similar to ivory or bone.