Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch Gem House USA These inclusions give it a

These inclusions give it a glistening effect termed “aventurescence

” Fire Opal is believed to utilize elemental fire to awaken one’s passion

but has been used historically to describe the transparent variety

created when silica hardens within the fissures of other stones

Blue Chalcedony is a naturally occurring soft blue translucent stone

Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch Gem House USA These inclusions give it aThis 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.