
1) Abalone lining 2) Abalone product 3) Abalone secretion 4) Abalone shell 5) Abalone shell layer 6) Abalone shell lining 7) Abalone-shell liner 8) Bead makeup 9) Bead material 10) Beautiful stone 11) Brooch feature 12) Button base 13) Button material 14) Button source 15) Button stuff 16) Button substance
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https://www.crosswordclues.com/clue/nacre

1) Mother-of-pearl 2) Mother of pearl 3) Semitransparency
Found on
https://www.crosswordclues.com/clue/nacre

{sea shell topics} Nacre (ər {respell|NAY|kər}) also known as mother of pearl, is an organic-inorganic composite material produced by some molluscs as an inner shell layer; it is also what makes up the outer coating of pearls. It is strong, resilient, and iridescent. Nacre is found in some of the more ancient lineages of bivalves, gastropods, an...
Found on
http://en.wikipedia.org/wiki/Nacre

mother-of-pearl
Found on
http://phrontistery.info/n.html

• (n.) A pearly substance which lines the interior of many shells, and is most perfect in the mother-of-pearl. [Written also nacker and naker.] See Pearl, and Mother-of-pearl. • (n.) A pearly substance which lines the interior of many shells, and is most perfect in the mother-of-pearl. [Written also nacker and naker.] See Pearl, and Mothe...
Found on
http://thinkexist.com/dictionary/meaning/nacre/

Nacre is composed of layers of calcium carbonate (in a crystalline form) and conchiolin (an organic protein substance which provides bonding).
Found on
http://www.antique-marks.com/antique-terms-n.html

(NAY-ker) The pearly substance secreted by the mantle of certain molluscs to form a pearl.
Found on
http://www.braybrook.co.uk/jewellery-and-silver-wisdom/gems-of-information/

The inner portion of a mollusk
Found on
http://www.conservewildlifenj.org/glossary/

The iridescent inside of a mollusk shell, which is used as an ornament. Not to be confused with pearl.
Found on
http://www.encyclo.co.uk/local/22290

The iridescent inside of a mollusk shell, which is used as an ornament. Not to be confused with pearl.
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http://www.encyclo.co.uk/local/22291

See mother-of-pearl.
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Na'cre noun [ French, confer Spanish
nácara ,
nácar , Italian
nacchera ,
naccaro , Late Latin
nacara ,
nacrum ; of Oriental origin, confer Arabic
nakīr hollowed.]
(Zoology) A pearly substance which lines the interior of many shells, an...
Found on
http://www.encyclo.co.uk/webster/N/1
Na`cré' adjective [ French See
Nacre .]
(Art) Having the peculiar iridescence of nacre, or mother-of-pearl, or an iridescence resembling it; as,
nacré ware.
Found on
http://www.encyclo.co.uk/webster/N/1

Nacre is the technical name for mother-of-pearl.
Found on
http://www.probertencyclopaedia.com/browse/GN.HTM

The crystalline substance made of aragonite and calcite crystals bound together by conchiolin, which mollusks like oysters secrete around foreign objects within their shells, layers of which eventually form a pearl
Found on
http://www.saffronart.com/sitepages/jewelry/glossary.aspx

(Spanish: nacar) the mother-of-pearl from any shelled mollusc. Many molluscs make shells consisting of limestone (calcium carbonate, CaCO3), but they cover the insides of their shells in a much harder substance, which protects them against shell-boring worms and attacks from outside. It also gives them a much better surface to attach their bodies t...
Found on
http://www.seafriends.org.nz/books/glossary.htm

In Pearls, multiple layers of calcium carbonate that surround a nucleus and giving the pearl a iridescent appearance.
Found on
https://www.encyclo.co.uk/local/22070

mother-of-pearl.
Found on
https://www.infoplease.com/dictionary/nacre
No exact match found.