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
opal
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The answer OPAL (opal ) has 1667 possible clue(s) in existing crosswords.
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The word OPAL (opal ) is VALID in some board games. Check OPAL (opal ) in word games in Scrabble, Words With Friends, see scores, anagrams etc.
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Definitions of opal in various dictionaries:
noun - a translucent mineral consisting of hydrated silica of variable color
noun - a mineral
OPAL - 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%. Beca...
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| Opal might refer to |
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| 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 |