That clock has four faces made of opal, estimated at a value of $10-20 million.
In that case, at least, Little, Brown responded by pulling opal from the bookshelves.
The rebels then turned their guns on the family huddled in the opal.
One of the more positive parts of your personal life is your marriage to opal Stone Perlman, which has lasted over three decades.
The mineral is also used in the production of opal glass and enamel ware.
To live in Venice is like being domesticated in the heart of an opal.
And while these two worthy ladies worried and fretted, opal Ledoux laughed and dreamed.
The top of the mountain, like that of Shasta, in direct sunlight is an opal.
McGuire had to force his eyes away from the unreal beauty of opal walls like the fairy structures they had seen.
There was also an Australian opal and an Asian emerald, the latter greener than the grass.
1590s, from Middle French opalle (16c.), from Latin opalus (Pliny), supposedly from Greek opallios, possibly ultimately from Sanskrit upala-s "gem, precious stone." Used in Middle English in Latin form (late 14c.).
A usually transparent mineral consisting of hydrous silica. Opal can occur in almost any color, but it is often pinkish white with a milky or pearly appearance. It typically forms within cracks in igneous rocks, in limestones, and in mineral veins. It also occurs in the silica-rich shells of certain marine organisms. Chemical formula: SiO2·nH2O.