Crystal quartz (natural) beads
Mohs hardness 5 to 5-1/2
Shape: medium chips
Size: vary from 4x3mm, 6x4mm, 12x4mm
Hole size: 0.5-1.5mm
Quantity: 34 inches loop strand (about 250 beads)
Quartz beads are colorless and transparent with varying inclusions.