"Mineral" could refer to at least four bands: an emo band from Austin Texas, Armenian rock music veterans from Jermuk and another one from Boston.
These are videos from concerts where Mineral played, so they may be of other bands that played the concert as well.
Mineral / The Promise Ring Oct 26, 1997 Austin, Texas, United States Added by Concert Archives
Mineral Sep 16, 1997 Birmingham, Alabama, United States Added by Concert Archives
Mineral / The Get Up Kids / Jejune / Peterbuilt / Tomorrow Sep 13, 1997 Orlando, Florida, United States Added by Concert Archives
Mineral playing accoustic
Mineral Sep 5, 1997 Baltimore, Maryland, United States Added by Concert Archives
The Promise Ring / The Get Up Kids / Mineral / Cursive / The regrets Aug 28, 1997 Chicago, Illinois, United States Added by Concert Archives