The way you're holding the coin to show the edge is all wrong. You're supposed to touch it only on the edge, not in the middle of the obverse and reverse.
I have a 1978 quarter. Not as shiny but it weighs 5.56 on 5 different scales including a jeweler's scale.
I have a 1978 quarter. Not as shiny but it weighs 5.56 on 5 different scales including a jeweler's scale.
Welcome to CT. Start your own new thread and post clear, in focus photos of obverse reverse and the edge please, you will get more views with a new thread
The normal weight for a quarter is 5.67 g +/- 0.227 g so yours is well within tolerance. Welcome to CT
Sometimes the coin can be slightly underweight. (Struck on a slightly thinner planchet.) It has to be drastically under or over weight to have value.