Answer: madreperla
Word Origin late 16th century: French from late Latin nacchara nacara perhaps from Arabic.
Scrabble Points: 7
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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 is also the material of which pearls are composed. It is strong resilient and iridescent.
Recent Examples on the Web In fact the material absorbs more energy than natural nacre (mother of pearl) which gives some shells their strength and also beats existing artificial materials Wang and his colleagues say. — Matt Simon Wired 22 Feb. 2021 Melo Melo pearls like conch pearls are not true pearls as they are not made of nacre.
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Nacre is crystalline aragonite or calcium carbonate. Shellfish and mollusks excrete it when they are exposed to a parasite or a foreign body introduced into a shell. It is noted for its shine and iridescence and its coating on shells is called mother of pearl.
Nacre (pearl layer) is the inner iridescent layer of molluscan shells which is composed of alternating layers of aragonite platelet and organic materials film. The aragonite platelets occupying ∼95 mass% of nacre are polymorph of calcium carbonate with a thickness of about 500 nm (Fritz et al. 1994; Jackson et al. 1990).
Nacre Watches are designed with attention to simple s...