Shale Density Beads

Shale Density Beads. Set of 11 beads with specific gravity of: 1.8, 1.9, 2.0, 2.22, 2.27, 2.35, 2.41, 2.50, 2.56, 2.69 and 2.86. Used for determination of specific gravity. Standard set consists of 11 color-coded glass beads.