Dendritic Black Opal 6mm Round 15-16 Inch featured_05072026EUD but also for industrial purposes

but also for industrial purposes from watch gears and scientific instruments to sandpaper and other abrasives

In this strand

it offers a way to work a neutral color into your designs

prized throughout history for its beautiful colors and patterns

Dendritic Black Opal 6mm Round 15-16 Inch featured_05072026EUD but also for industrial purposesThis variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns. These inclusions consist of iron, manganese and other metallic oxides captured during the forming of the rock. Opals are hydrated amorphous forms of silica, created when silica hardens within the fissures of other stones.