This page summarizes some tests carried out to evaluate the effect of sunlight and weather exposure on chatoyance.

Sunlight exposure on purpleheart page reports an average reduction of 1.4 PZC points just after one day of exposure on purpleheart.

Sunlight & Weather exposure on sweet cherry shows some examples of chatoyance on weathered wood.

Sunlight Exposure on field maple shows a significant increase of chatoyance on sunlight-aged maple wood.