Royal Caribbean Cruise Lines has had problems with norovirus outbreaks among their fleet. To combat the rapidly spreading infectious stomach virus, even the casino has to scrub down -- including all the chips in play at the casino. A RCL casino employee told me that some of the newer chips (yours is one of them) bled horribly due to harsh chemical exposure -- either too strong or wrong formula cleaning.
So, I guess you chip is a good example of how to kill a virus and damage a casino chip at the same time. Hope this helps.