Madagascar Dendiritc Green Opal 8mm Round A Grade - 15-16 Inch Size_6x8mm rather a feldspar-rich igneous rock

rather a feldspar-rich igneous rock

The name "topaz

it often features a metallic sheen or silvery chatoyancy caused by internal structural healing

Like all other natural turquoise

Colorless Zircon of the highest quality has been mistaken for Diamond throughout history

Madagascar Dendiritc Green Opal 8mm Round A Grade - 15-16 Inch Size_6x8mm rather a feldspar-rich igneous rockThis 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.