Found all over the world, calcite is the most stable form of calcium carbonate and is the main mineral found in limestone. We find calcite in the ocean, in shells or hard parts of marine organisms ...

When looking at calcite under a microscope, a scientist would immediately recognize the crystalline form of calcium carbonate by its rhombohedral appearance. That is, calcite is shaped like a ...

On this week's episode of Mineral Monday we learn about a mineral that comes in many different crystal formations. On display at The Keck Museum is one of the more rare formations of calcite shown ...

Tucked away on a high shelf in the collections room of the Museum of Science is a startlingly unique rock specimen. It is white with long jutting crystal arms and made of a fragile mineral called ...

For almost a century, scientists have been puzzled by a process that is crucial to much of the life in Earth's oceans: Why does calcium carbonate, the tough material of seashells and corals, sometimes ...

A researcher has firsthand experience with the frustrations of oil production. He spent nine years as a hydraulic fracturing engineer with operating and service companies. A few years ago, he started ...

The rock formations in caves are chemistry fossils — that glow. These rocks are made of calcite, a form of calcium carbonate. Impurities trapped in calcite cause the mineral to fluoresce different ...

Distance from downtown San Diego: 104 miles. Allow almost 3 hours’ driving time (Anza-Borrego Desert State Park). From Ramona, drive east on Hwy 78, turn left on Hwy 79, right on San Felipe Road (S2), ...

Minerals – as opposed to organic compounds – could reveal the presence of ancient life on Mars, a new study reports. The research suggests relatively simple experiments aboard future landers or sample ...