Dendritic Opal 3x6mm Faceted Rondelle - 15-16 Inch Size_8x19-11x29mm Stone Description -

Stone Description -

Phantom Quartz form over pre to existing crystals

though it also can occur in dark brown and golden colors

Occurring in sizes ranging from a grain of sand to the size of an apple

As a Serpentine

Dendritic Opal 3x6mm Faceted Rondelle - 15-16 Inch Size_8x19-11x29mm Stone Description -This 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.