I am trying to guess why you are curious about this . . . Is it because you want to add a magnesium glycinate supplement to your hot tea? I am not a chemist by any means (I barely passed high school chem), so I can't really offer any help. I believe that glycine is an amino acid and magnesium is a mineral. I couldn't begin to tell you what happens when magnesium glycinate is added to water, or if the temperature of the water would make a difference. I asked a similar question and am not holding out much hope for an answer.