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It is opaque
Petrification occurs when the wood is covered by sedimentary rock
often occurring with inclusions of white
Although most people think of diamonds as colorless
Dendritic Green Opal 10mm Round - 15-16 Inch JUL4-HP It is opaqueThis 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.
