Found all over the world, calcite is the most stable form of calcium carbonate and is the main mineral found in limestone.

When research on an intriguing material called for hundreds of samples, secondary-school students, teachers and technicians stepped up.

Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, and very high concentrations of carbon dioxide in the atmosphere. Yet, under ...

For instance, calcium carbonate is best absorbed with food, while calcium citrate can be taken on an empty stomach. However, even with the right type of supplement, pairing it with certain foods ...

U.S. District Judge Gretchen Lund sentenced a Whiting man to 10 months in federal prison Wednesday after he threatened an interracial family next door — and their landlord — until they moved out.

HAMMOND — A Whiting man who admitted his threats to assault a member of a multi-racial family living next door and other hostile acts were motivated by his opposition to people of color living ...