Welcome to Anagrammer Crossword Genius! Keep reading below to see if opal is an answer to any crossword puzzle or word game (Scrabble, Words With Friends etc). Scroll down to see all the info we have compiled on opal.
opal
Searching in Crosswords ...
The answer OPAL has 1667 possible clue(s) in existing crosswords.
Searching in Word Games ...
The word OPAL is VALID in some board games. Check OPAL in word games in Scrabble, Words With Friends, see scores, anagrams etc.
Searching in Dictionaries ...
Definitions of opal in various dictionaries:
noun - a translucent mineral consisting of hydrated silica of variable color
A translucent mineral of hydrated silica, often used as a gem.
noun - a mineral
Word Research / Anagrams and more ...
Keep reading for additional results and analysis below.
| Possible Jeopardy Clues |
|---|
| Varieties of it have included the fire, the white, the black, but not the Buick |
| The harlequin type of this gem is characterized by angular patches of fire |
| The black type of this October birthstone is quite rare, & more valuable than the fire variety |
| Gemologists call this stone found in abundance in Australia hydrated silica gel |
| About $3,500 will buy 75 1-carat examples of the black type of this birthstone |
| Mexico is known for its water & fire varieties of this gem |
| This October birthstone often has a white background but displays a rainbow of colors in bright light |
| (Cheryl of the Clue Crews shows off her stone.) It's one of the only natural gemstones to show play of color, the flashing of different colors within the same stone |
| Possible Dictionary Clues |
|---|
| a gemstone consisting of a quartz-like form of hydrated silica, typically semi-transparent and showing many small points of shifting colour against a pale or dark ground. |
| a translucent mineral consisting of hydrated silica of variable color some varieties are used as gemstones |
| a precious stone whose colour changes when the position of the person looking at it changes |
| A mineral of hydrated silica. |
| A gemstone made of this mineral, noted for its rich iridescence. |
| Opal description |
|---|
| Opal is a hydrated amorphous form of silica (SiO2·nH2O); its water content may range from 3 to 21% by weight, but is usually between 6 and 10%. Because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classed as minerals. It is deposited at a relatively low temperature and may occur in the fissures of almost any kind of rock, being most commonly found with limonite, sandstone, rhyolite, marl, and basalt. Opal is the national gemstone of Australia.There are two broad classes of opal: precious and common. Precious opal displays play-of-color, common opal does not. Play-of-color is defined as "a pseudochromatic optical effect resulting in flashes of colored light from certain minerals, as they are turned in white light." The internal structure of precious opal causes it to diffract light, resulting in play-of-color. Depending on the conditions in which it formed, opal may be transparent, translucent or opaque and the background c |