how can i cut and join together mirror glass panels that are 1/4 thick and make the seams look good? mold or glue? they will be installed on a wall in basement. thanx

I would use a glass cutter, but, if you are unsure of your skill then locate a hardware store that cuts glass. It's inexpensive.

If it does not look good just butted together, I would opt for a transparent molding. Glue or silicone would not give a professional look.