Meaning | A translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones. |
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Narrower | black opal | A dark colored opal with internal reflections of green or red |
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fire opal, girasol | An opal with flaming orange and yellow and red colors |
harlequin opal | A reddish opal with small patches of brilliant color |
Broader | mineral | Solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
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opaque gem | A gemstone that is opaque |
Spanish | ópalo |
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Catalan | òpal |
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Verbs | opalize | replace or convert into opal |
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opalize | make opalescent |