I have white particles in the water in one of my showers, but no where else in the house. I only have 1 hot water heater too. Any suggestions on what it is and how to get rid of them?

These whits specs. Do they seem like plastic or mineral?

They seem more mineral than plastic. But what really throws me is that they only come out of that 1 shower and no where else.

Do this. Run the hoit water in the bath room sink until the water runs hot. Shut the water off and unscrew the aerator from the spout and check the screens. Any white particles on the screens?