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a form of silica with a cryptocrystalline structure that incorporates Moganite along with the Quartz
naturally hypo-allergenic and 100% lead-safe
As the stone catches the light
The fibrous asbestos inclusions in the stone give it the flash that inspired its name
Madagascar Dendiritc Green Opal 6mm Round A Grade - 15-16 Inch 6X8 a form of silica withThis 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.