Opal vs Nacre - What's the difference?
opal | nacre |
(mineralogy) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula Si]]O2· n[[water, H2O.
* {{quote-magazine, date=2012-03
, author=Lee A. Groat
, title=Gemstones
, volume=100, issue=2, page=128
, magazine=(American Scientist)
(biology, genetics, biochemistry) A colloquial name used in molecular biology referring to a particular stop codon sequence, "UGA."
(obsolete) A shellfish which contains mother-of-pearl.
*, II.12:
A pearly substance which lines the interior of many shells; mother-of-pearl.
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As nouns the difference between opal and nacre
is that opal is (mineralogy) a mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity, of the chemical formula si]]o2· n[[water|h2o while nacre is (obsolete) a shellfish which contains mother-of-pearl.opal
English
(wikipedia opal)Noun
(en noun)citation, passage=Although there are dozens of different types of gems, among the best known and most important are […] . (Common gem materials not addressed in this article include amber, amethyst, chalcedony, garnet, lazurite, malachite, opals , peridot, rhodonite, spinel, tourmaline, turquoise and zircon.)}}
Derived terms
* fire opal * wood opal * opaline * opalesceReferences
Anagrams
* ----nacre
English
Alternative forms
* (l) (obsolete) * (l) (obsolete)Noun
(en noun)- The shell-fish called a Nacre , liveth even so with the Pinnotere, which is a little creature like unto a Crabfish.