Dendritic Opal 3x6mm Faceted Rondelle - 15-16 Inch Tuxedo Agate ” which means that it

” which means that it can appear to be different colors as it shifts in the light

The most prestigious Eudialyte comes out of Greenland

and often marbled green shell

Like other Agates

depending on the inclusions

Dendritic Opal 3x6mm Faceted Rondelle - 15-16 Inch Tuxedo Agate ” which means that itThis 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.