A couple of nights ago Murphy peed on the edge of the deck when I put her out before bed. I didn't have any water handy to clean up and it was dark so I left it.
The next day was sunny and I had forgotten about the pee from the night before. I was reminded when the area looked sparkly - must have been crystals in the urine, right?
She's showing no other signs of a bladder infection and eats premium high protein kibble and raw food, both of which are suggested to lower urine pH to prevent crystals.
I can't find anything on the internet to indicate whether I should be concerned or not, but I'm planning to take her (and a urine sample) to the vet.
Has anyone had a similar experience?