I cleared off the mosaic before I got the gong piece from the area. Is it gone for good?

If I understand you right you can't get the mosaic piece before you clear it of [I think!!] just keep at it and it should appear.

Are you saying that you retrieved it and lost it, or you haven't gotten that piece to show up yet? You have to do something specific to get that piece. If you need a hint, you can always check the Guides section at the bottom of the forum list.

Ooops, read it again and see I missed something! I don't always see real well I have had optic neuritis too many times.

Yay, problem solved. And first strike of the gong gave me extra food. Thanks for the help.