Brazilian ebony exposure series
raw
after 1 week with the right side exposed to direct sunlight (behind window glass) for several hours a week and the left side covered
2 weeks
3 weeks
one month --- after a month, the slight red tint has disappeared and it is becoming difficult to distinguish the two sides even though one has been exposed only slightly to air and the other to both air and sunlight.
2 months --- not much different than one month; perhaps a little more darkening
3 months
4 months