thumb|upright=1.2|The iridescent nacre inside a nautilus shell thumb|upright=1.2|Nacreous shell worked into a decorative object
Nacre is the shimmering, iridescent layer found inside certain shells, like those of nautiluses and oysters, that creates the lustrous appearance we call mother-of-pearl. It matters because its unique combination of strength and beauty has made it valuable for both decorative objects and as a subject of scientific study for understanding natural materials.
AI-generated from the Wikipedia summary — may contain errors.
thumb|upright=1.2|The iridescent nacre inside a nautilus shell thumb|upright=1.2|Nacreous shell worked into a decorative object
Nacre ( , ), also known as mother-of-pearl, is an organicinorganic 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.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).