opal

(redirected from Boulder opal)
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o·pal

(ō′pəl)
n.
1. A mineral of hydrated silica.
2. A gemstone made of this mineral, noted for its rich iridescence.

[Early Modern English, from Middle French opale, from Latin opalus, alteration of Greek opallios, probably from Sanskrit upalaḥ, stone, precious stone (often in the sandhi form opalaḥ in the names of gems such as nīlopalaḥ, sapphire : nīla-, blue + upalaḥ), possibly variant of upara-, lower, from upa, towards, under, down; see upo in the Appendix of Indo-European roots.]

o′pal·ine′ (ō′pə-līn′, -lēn′) adj.

opal

(ˈəʊpəl)
n
(Minerals) an amorphous, usually iridescent, mineral that can be of almost any colour, found in igneous rocks and around hot springs. It is used as a gemstone. Composition: hydrated silica. Formula: SiO2.nH2O
[C16: from Latin opalus, from Greek opallios, from Sanskrit upala precious stone]
ˈopal-ˌlike adj

o•pal

(ˈoʊ pəl)

n.
1. a mineral, an amorphous form of silica, SiO2, with some water of hydration, found in many varieties and colors, including milky white.
2. a gemstone made of this, esp. of an iridescent variety.
[1350–1400; Middle English < Latin opalus < Greek opállios opal, gem]

o·pal

(ō′pəl)
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.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.opal - a translucent mineral consisting of hydrated silica of variable coloropal - a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
black opal - a dark colored opal with internal reflections of green or red
fire opal, girasol - an opal with flaming orange and yellow and red colors
harlequin opal - a reddish opal with small patches of brilliant color
opaque gem - a gemstone that is opaque
Translations
حَجَر عَيْن الشَّمْس: حَجَر كريم
opal
opál
ópall
opalas
opāls
opálopálový

opal

[ˈəʊpəl] Nópalo m

opal

[ˈəʊpəl] nopale f

opal

n (= stone)Opal m; (= colour)beigegraue Farbe
adjOpal-, opal-; (colour) → opalen (liter), → beigegrau schimmernd; opal blueopalblau; opal ringOpalring m

opal

[ˈəʊpl] nopale m or f

opal

(ˈoupəl) noun
a type of usually bluish-white or milky white precious stone, with slight traces or streaks of various other colours. There are three opals in her brooch; (also adjective) an opal necklace.
References in periodicals archive ?
99 with the most expensive a ninecarat gold boomerang pendant with boulder opal for PS99.
Old World sculpted circle link necklace of 18K yellow gold, oxidized silver and champagne diamonds, set with pendant enhancer made with malachite and black and white diamonds; Crivelli 18K gold and silver cross hoop earrings accented with opals and white diamonds; fleur-de-lis cuff accented with blue sapphires and set with boulder opal and white diamonds; 18K yellow gold Old World-inspired wide ring set with diamonds and sapphires; oval ring surrounded by white diamonds and blue sapphires, all Armenta from Jewelry from June Simmons Design.
50 comic book by cult illustrator Sarah Ray to a hand-made 18-carat gold ring set with two cognac diamonds and boulder opal priced at pounds 1,530 by internationally-renowned designer-maker Michele White.

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