opal : Idioms & Phrases
black opal
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noun a dark colored opal with internal reflections of green or red
WordNet
Fire opal
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noun an opal with flaming orange and yellow and red colors
girasol.
WordNet
- a variety of opal giving firelike reflections.
Webster 1913
Harlequin opal
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noun a reddish opal with small patches of brilliant color
WordNet
- . See
Opal .
Webster 1913
Jasper opal
- a yellow variety of opal resembling jasper.
Webster 1913
opal glass
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noun a milky white translucent or opaque glass
milk glass.
WordNet
Wood opal
(Min.) , a striped variety of coarse opal, having some resemblance to wood.