Looks like a nice white urate. I've seen poops have that kind of gel coat/consistency and it's not a big deal. Has that happened frequently or is it a one or two time thing? If it's not happening long term I wouldn't worry about it much.
They can be odd from time to time. Sometimes they are messy too but they can get upset stomachs now and then. It isn't usually a big deal unless it becomes a trend.