Climate history recorded in a calcite deposit in a southern Nevada cave indicates that the hot, arid southwestern United States experienced significant shifts in temperature and rainfall over the last ...

The origins of vivid colors within the gemstone ammolite—a rare type of brightly colored fossilized ammonite shell—are reported in research published in Scientific Reports. The colors of ammolite ...

The 2025 NBA season began this week, and it's already time for a rematch of the 2025 NBA Finals. Reigning champs the Oklahoma City Thunder head to Indiana tonight to play the Pacers. The Thunder ...

A new assessment finds that the world’s oceans crossed the safe threshold for acidification in 2020, breaching a key planetary boundary and posing serious threats to marine life. Ocean acidification ...

Please provide your email address to receive an email when new articles are posted on . An aragonite-based scaffold for chondral defects had better outcomes vs. microfracture. Women had the same or ...

College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P.R. China, College of Chemical Science, Qufu Normal University, Qufu 273165, P.R. China, Key Laboratory of Colloid ...

Please provide your email address to receive an email when new articles are posted on . An aragonite-based scaffold showed superior outcomes for osteochondral defects of the knee vs. the standard of ...

A gallstone of almost perfect octahedral symmetry was composed of a mixture of crystallites of the three polymorphous forms of calcium carbonate: calcite, aragonite, and vaterite.

Science, founded by Thomas A. Edison in 1880 and published by AAAS, today ranks as the world's largest circulation general science journal. Published 51 times a year, Science is renowned for its ...

We are currently using the following variable to refer to the saturation state for surface sea water wih respect to aragonite (and the same for calcite), and we would like to know if we could make it ...

Calcite crystals showing rhombohedral cleavage. Credit: Siim Sepp. Calcite is a carbonate mineral that forms a significant part of the Earth’s crust. It’s one of the most common types of minerals and ...

with ϵ = exp(−E b /RT). High rates of dissolution can be related to sites of higher surface energy, whereas low dissolution rates are related to sites of lower energy. Consequently, a rate set r = {r ...