black opal

noun

, Mineralogy.

1. a dark variety of opal having the characteristic opaline play of color.

black opal

noun

1. any opal of a dark coloration, not necessarily black

Example Sentences

For both, black opal had a subtle, inexplicable fascination.

From Project Gutenberg

They could not, he said, accept the magnificent pessimism of black opal.

From Project Gutenberg

He had put black opal on the market, and had been the first to extol the splendour of the stones found on Fallen Star Ridge.

From Project Gutenberg

Dawe Armitage had bought some of the best black opal found on the Ridge.

From Project Gutenberg

He did not altogether believe he would find it, that wonderful piece of black opal; but he dreamed, like a child, of finding it.

From Project Gutenberg