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precious opal

American  

noun

  1. any opal having a play of colors, used as a gemstone.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Most gem-stones are harder than quartz, though precious opal, turquoise, moonstone and sphene are inferior to it in hardness.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

"Opal Matrix" has tiny specks and films of precious opal distributed through a dark volcanic rock and the mass is shaped and polished as a whole.

From A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public by Wade, Frank Bertram

In a deep recess or alcove on one side a spring of clear water gushed from the rock into a natural basin of sinter, enamelled inside and out with the precious opal.

From A Trip to Venus by Munro, John

I said long ago that the beauty of Hohenfels' character, like that of the precious opal, was owing to a defect in his organization.

From Lippincott's Magazine of Popular Literature and Science Volume 12, No. 28, July, 1873 by Various

The bird had deposited in the mother's lap an egg which beamed like the precious opal with many-coloured brilliancy.

From Fairy Tales From all Nations by Montalba, Anthony R.