These Black opaque glass beads are tube shaped, some call them bugle beads. They are 6mm long x1.8mm diameter, and they are sold in a 50gram bag which contains about 1200 beads.
Where there are two colours, the left is Gunmetal, the right is Black.
I'll take a photo of all the bugle beads together when I'm done, so you can see their colour in relation to others. With these winter days and no sun, sometimes it is hard to capture the colour perfectly through the lens.....
"Don't be limited by your materials, play with your tesserae." Karen Baker.