Dendritic Black Opal 6mm Round 15-16 Inch featured_05072026EUD rendering its black especially deep

rendering its black especially deep and mysterious

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

commonly known as Limestone

created when silica hardens within the fissures of other stones

near the Kennedy Ranges of Australia

Dendritic Black Opal 6mm Round 15-16 Inch featured_05072026EUD rendering its black especially deepThis 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.