- Bead, 4mm round, D grade, Mohs hardness 6-1/2 to 7.
- Sold per 15-inch strand with approximately 90+ beads.
Hole approximately 0.8mm. - Black agate naturally contains bandings of warm burnt-orange and clear tones, with patterns resembling sardonyx.
- *Please consider the actual sizes given in the listing as the pictures are generally enlarged to show detail.