Madagascar Green Dendritic Opal 8mm Round - 15-16 Inch faceted_coins ” referring to the patterns

” referring to the patterns in the stone looking like broken

occuring 10

Fire Opal is a transparent or translucent stone named for the vivid red

Formed deep underground during the cooling of magma

Kyanite is also extremely useful in industrial applications due to its high heat resistance

Madagascar Green Dendritic Opal 8mm Round - 15-16 Inch faceted_coins ” referring to the patternsThis 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.