Pearls are produced by bivalve mollusks such as oysters. They form a substance called nacre which gives gem pearls their characteristic luster.

You get a unique conversation with one party member in Metaphor: ReFantazio after defeating the Sea Monster. Here is who you should choose.

If something pierces through the outer layer, the sea snail inside will still be protected by the nacre. Surprisingly, this natural armor of nacre is about 95 percent chalk.

The all-nacre Biwa pearls formed in colors unseen in saltwater pearls. Almost instantly appealing, their lustre and luminescent depth rivaled naturals because they, too, were pearls throughout.

SEEN: The 2024 Nacre Christmas Oratorio on Dec. 15, 2024, at Universal Preservation Hall in Saratoga Springs?

Whether the calcium carbonate crystal is calcite, as in the prismatic layer, or aragonite, as in the nacre of a seashell, seems to be protein-determined.

Nacre, an iridescent material that lines some seashells, gains strength and toughness from its structure: brittle mineral chips glued into layers by squishy proteins. Now researchers have used the ...

Mother-of-pearl looks dainty hanging from a necklace, but this iridescent innard of abalone shells is so tough it can withstand the weight of a truck. Also called nacre, the material has long ...

A biologist invented an inexpensive and environmentally friendly method for making artificial nacre using an innovative component: bacteria. The artificial nacre is made of biologically produced ...