The Brown Black Biotite Phlogopite 8mm beads are quite beautiful with more sparkle than I was expecting, which made me happy. They have a sort of satin finish, not matte but not a super shiny polish which I feel gives them a more organic appearance, which I like, and the sizing is consistent. They shipped quickly and were well packaged for safety. I am very happy with my purchase and would definitely order from this seller again.