Hamster urine color?

[elly]

I was cleaning up my hamsters wee spot when I cleaned his cage, it was kind of solidified so didnt pay much attention to the color. I left the room to get a clean rag and when i came back, he was in his wee spot again(with no bedding there) weeing there. It was a pretty odd color to me, it was kind of white-ish, and milky looking, versus the usual yellow urine of most animals. Is this normal, this white-ish milky color? He is my first ham.. not so educated on urine colors