If its actually a precious metal coin/round it should be stated on the opposite side of the coin. Normally something like 1 ozt 999 Gold or 1 ozt 999 Silver

For conversion use 1 troy oz = 31.1g

But the coin you have there is lacking finer detail of the silver round shown in https://www.jmbullion.com/1-oz-qanon-silver-round/ and is weighing in at 36g not 31g, so its not sounding like a precious metal coin, more likely a gold coated metal round. Still a pretty cool keepsake to hang on to, and a great reminder of your father.

To be 100% sure of its composition, you can always take it to a reputable coin dealer and they can scan it by XRF (a non destructive test) to accurately determine its composition.