Zirconia beads have a density of 5.5g/cc (Twice as dense as glass beads - good for tough tissue). Sold in one pound bottles.
Cat. No. 11079107zx 0.7mm dia
Cat. No. 11079110zx 1.0mm dia
Cat. No. 11079124zx 2.0mm dia
Listed bead sizes are median (average) values. Because beads are sorted by sieves, bead size varies between +/-10% of a listed value.