HyperDic: black_opal

English > 1 sense of the expression black opal:
NOUNsubstanceblack opala dark colored opal with internal reflections of green or red
English > black opal: 1 sense > noun 1, substance
MeaningA dark colored opal with internal reflections of green or red.
BroaderopalA translucent mineral consisting of hydrated silica of variable color
Spanishópalo negro
Catalanòpal negre

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