On this page you'll find 10+ example sentences with Opal. Discover the meaning, synonyms such as mineral and how to use the word correctly in a sentence.
Opal in a sentence
Related words
Opal meaning
- A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO₂·nH₂O.
- A precious gem, an iridescent gemstone found in the opal-silica mineral substrate (potch)
Synonyms of Opal
Opal vertaling naar Nederlands
Using Opal
- The main meaning on this page is: A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO₂·nH₂O. | A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula SiO₂·nH₂O. | A precious gem, an iridescent gemstone found in the opal-silica mineral substrate (potch)
- Useful related words include: mineral, opaque gem.
- Possible Dutch translations are: opaal.
- In the example corpus, opal often appears in combinations such as: opal is, the opal, precious opal.
Context around Opal
- Average sentence length in these examples: 21.6 words
- Position in the sentence: 11 start, 8 middle, 1 end
- Sentence types: 19 statements, 1 questions, 0 exclamations
Corpus analysis for Opal
- In this selection, "opal" usually appears near the start of the sentence. The average example has 21.6 words, and this corpus slice is mostly made up of statements.
- Around the word, precious, australian, common, miner, field and doublet stand out and add context to how "opal" is used.
- Recognizable usage signals include 1980s by opal miner bob and a cantera opal. That gives this page its own corpus information beyond isolated example sentences.
- By corpus frequency, "opal" sits close to words such as admiring, aerosol and angolan, which helps place it inside the broader word index.
Example types with opal
The same corpus examples are grouped by length and sentence type, making it easier to see the contexts in which the word appears:
Is the new NSW government about to tap-off on Opal? (11 words)
This type of Mexican opal is referred to as a Cantera opal. (12 words)
The second "opal-A" is opal-AN or water-containing amorphous silica-glass. (13 words)
Nevertheless, opals can be roughly divided into those that show no signs of crystalline order ( amorphous opal) and those that show signs of the beginning of crystalline order, commonly termed cryptocrystalline or microcrystalline opal. (34 words)
An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. (32 words)
Peruvian opal (also called blue opal) is a semiopaque to opaque blue-green stone found in Peru, which is often cut to include the matrix in the more opaque stones. (30 words)
Is the new NSW government about to tap-off on Opal? (11 words)
Example sentences (20)
An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian.
The rarest type of Australian opal is "pipe" opal, closely related to boulder opal, which forms in sandstone with some iron oxide content, usually as fossilized tree roots.
Graeme Dowton is an opal miner and tour operator with is company Red Earth Opal, in White Cliffs.
The fossils were first discovered in the 1980s by opal miner Bob Foster in the Sheepyard opal field.
Australian opal The town of Coober Pedy in South Australia is a major source of opal.
However, the true girasol opal is a type of hyalite opal that exhibits a bluish glow or sheen that follows the light source around.
Jewelry applications of precious opal can be somewhat limited by opal's sensitivity to heat due primarily to its relatively high water content and predisposition to scratching.
Most so-called synthetics, however, are more correctly termed "imitation opal", as they contain substances not found in natural opal (e.
Nevertheless, opals can be roughly divided into those that show no signs of crystalline order ( amorphous opal) and those that show signs of the beginning of crystalline order, commonly termed cryptocrystalline or microcrystalline opal.
Noncrystalline opal Two broad categories of noncrystalline opals, sometimes just referred to as "opal-A", have been proposed.
Peruvian opal (also called blue opal) is a semiopaque to opaque blue-green stone found in Peru, which is often cut to include the matrix in the more opaque stones.
Precious opal Precious opal consists of spheres of silicon dioxide molecules arranged in regular, closely packed planes.
The largest polished black opal in the Smithsonian Institution comes from the Royal Peacock opal mine in the Virgin Valley, weighing 160 carats, known as the "Black Peacock".
The second "opal-A" is opal-AN or water-containing amorphous silica-glass.
The world's largest and most valuable gem opal " Olympic Australis " was found in August 1956 at the "Eight Mile" opal field in Coober Pedy.
This type of Mexican opal is referred to as a Cantera opal.
When he entered a plane with Opal a bomb detonates, and Opal reveals herself as Mystique.
Even with the support of her best friend, Opal feels left out and is hurt by the teasing.
Family friends Rabby (Kelli Blackwell), and her son Larry (Matthew Elijah Webb) and daughter Opal (Gaelyn D. Smith) also experience a Queer awakening close to home.
Is the new NSW government about to tap-off on Opal?
Common combinations with opal
These word pairs occur most frequently in English texts:
- opal is 11×
- the opal 11×
- precious opal 10×
- of opal 8×
- an opal 7×
- black opal 5×
- and opal 5×
- opal wealth 5×
- australian opal 3×
- opal and 3×