Nacre (nonfiction): Difference between revisions
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'''Nacre''' (/ˈneɪkər/ nay-kər also /ˈnækrə/ nak-rə), also known as mother of pearl, is an organic-inorganic composite material produced by some molluscs as an inner shell layer; it also makes up the outer coating of pearls. | [[File:Nacre_powder_flask.jpg|thumb|Nacre gunpowder flask, circa 1750, mostly consisting of the polished shell of a large sea snail ''Turbo marmoratus''.]]'''Nacre''' (/ˈneɪkər/ nay-kər also /ˈnækrə/ nak-rə), also known as mother of pearl, is an organic-inorganic composite material produced by some molluscs as an inner shell layer; it also makes up the outer coating of pearls. | ||
Nacre is strong, resilient, and iridescent. | Nacre is strong, resilient, and iridescent. | ||
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Other mollusc families that have a nacreous inner shell layer include marine gastropods such as the Haliotidae, the Trochidae and the Turbinidae. | Other mollusc families that have a nacreous inner shell layer include marine gastropods such as the Haliotidae, the Trochidae and the Turbinidae. | ||
== In the News == | |||
<gallery mode="traditional"> | |||
File:Abalone.jpg|link=Abalone (nonfiction)|An [[Abalone (nonfiction)|abalone]] shows off its nacre during the [[Abalonia|Abalonia Days Parade]]. | |||
File:Nacre_fracture.jpg|link=Nacreum|[[Nacreum|The Nacreum]] is a [[transdimensional prison]] made of superintelligent nacre. | |||
</gallery> | |||
== Fiction cross-reference == | == Fiction cross-reference == | ||
* [[ | * [[Gnotilus]] | ||
* [[Nacreum]] - a [[transdimensional prison]] constructed of intelligent nacre. | |||
* [[The Eel]], a slippery [[Supervillain (nonfiction)|supervillain]]. | |||
== | == Nonfiction cross-reference == | ||
* [[ | * [[Nautilus (nonfiction)]] | ||
External links: | |||
* [https://en.wikipedia.org/wiki/Nacre Nacre] @ Wikipedia | * [https://en.wikipedia.org/wiki/Nacre Nacre] @ Wikipedia | ||
Latest revision as of 07:47, 24 June 2016
Nacre (/ˈneɪkər/ nay-kər also /ˈnækrə/ nak-rə), also known as mother of pearl, is an organic-inorganic composite material produced by some molluscs as an inner shell layer; it also makes up the outer coating of pearls.
Nacre is strong, resilient, and iridescent.
It is found in some of the more ancient lineages of bivalves, gastropods, and cephalopods.
However, the inner layer in the great majority of mollusc shells is porcellaneous, not nacreous, and this usually results in a non-iridescent shine, or more rarely in non-nacreous iridescence such as flame structure as is found in conch pearls.
The outer layer of pearls and the inside layer of pearl oyster and freshwater pearl mussel shells are made of nacre.
Other mollusc families that have a nacreous inner shell layer include marine gastropods such as the Haliotidae, the Trochidae and the Turbinidae.
In the News
An abalone shows off its nacre during the Abalonia Days Parade.
The Nacreum is a transdimensional prison made of superintelligent nacre.
Fiction cross-reference
- Gnotilus
- Nacreum - a transdimensional prison constructed of intelligent nacre.
- The Eel, a slippery supervillain.
Nonfiction cross-reference
External links:
- Nacre @ Wikipedia