The research team has identified atacamite as a material with magnetocaloric properties. Natural crystals have long ...

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Here we report a preliminary quantitative investigation into calcite piezoelectricity using a combination of quantum mechanical modelling and electromechanical characterisation of naturally occurring ...

In turn, this affects calcite’s reactivity. Thus far, the influence of synthesis approach on the internal structure of crystals has received little attention.

Image via Wiki Commons. At its core, a crystal is a solid material whose constituents, such as atoms, molecules, or ions, are arranged in a highly ordered microscopic structure.

Credit: Wikimedia Commons. Calcite’s crystal structure is defined by a true rhombohedral unit cell. It comprises calcium ions at the corners and CO3 groups at the center.

The eyes belonged to an extinct group of animals called trilobites, and their eyes were made of hard crystal, a mineral known as calcite – a strange little quirk that gives us a window into how these ...

Filled with clusters of calcite crystals The researchers described the eggs as “nearly spheroid” and cannonball-sized, with a length of 4.1 to 5.4 inches (105 to 137 millimeters) and a width ...