All are made largely of aragonite, the original shell material. The recent shells retain the organic material that give the shells their color and nacreous sheen. Nacre (mother of pearl) is an ...

Other types of allochems include intraclasts, pellets, and ooids. Aragonite - A mineral with the same chemical composition as calcite (i.e., calcium carbonate) but with a different crystalline ...

The lenses are made of a mineral called aragonite, which the chitons assemble from calcium and carbonate molecules in seawater. Simply put, this creature has evolved a way to sharpen its vision by ...

along with gritty bits of white aragonite that we had acquired while squeezing through a tight formation-lined tube. From the entrance, we had descended a series of climbs, stoop walks ...

“Their middles are called aragonite. So they’re not bone; they’re not teeth. It is formed completely differently, and they’re heavily used in fish studies.” The otoliths are amber in ...

While most captive-bred fish tolerate a wide range of pH levels, maintaining adequate amounts of alkalinity in the water acts ...

The oyster or mussel slowly secretes layers of aragonite and conchiolin, materials that also make up its shell. This creates a material called nacre, also known as mother-of-pearl, which encases the ...

Over the long term, as coral reefs continue to build themselves up, the framework of the coral reef is filled with sediment and cemented with calcite and aragonite. If sea level changes ...

Focus: investigating the timing of biomineral switches in Late Cretaceous bryozoans and their relationship to changing seawater chemistry Museum scientists are investigating the timing of a switch ...

Coupe and convertible models are now available in the Exclusive Edition variant, which features LED headlights embedded with Swarovski crystals, light brown wood trim, Aragonite Silver or ...