An agate in backlight

This is a section of agate (a semiprecious stone) in backlight. The colors are slightly accentuated and they run from jellow and reddish brown to black and white. They form a concentric drawing that remembers the section of a tree trunk but that has a diamond shape. The photo is taken with a macro and the original stone section measures about 12x10 centimetres (March, 2018).