Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch FEATURE12152022 leading to discoloration

leading to discoloration

Opalite can have a blue appearance when placed against a dark background and appear milky white with a pink or orange glow against a light background

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Madagascar Green Dendritic Opal 10mm Round - 15-16 Inch FEATURE12152022 leading to discolorationThis 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.