Urate crystals/ brick dust ?

I’m just wondering if this is urate crystals or if I should be concerned… My little guy is 2 months old and doesn’t seem dehydrated but I seen this in his diaper and was reading online that it could be brick dust. I’m not sure if I’m suppose to worry about it he seems to be okay but our breastfeeding life is a roller coaster so maybe he’s not getting enough just not sure if I should take him in or if I should just watch and wait. Never seen this before so I don’t know anymore.