Calcite can be transparent ... Mineral carbonation processes occur in nature and have been occurring for millions of years. It's a geochemical process that involves CO 2 dissolved in rainwater ...

A MONOCHROMATIC beam of cathode rays was directed against a cleavage face of calcite at a grazing incidence, and the diffraction pattern was obtained on the photographic plate placed behind the ...

"Whether it's a scene is questionable," says Paul Pettitt, an archaeologist and rock-art specialist at Durham University told Nature. The team analysed calcite "popcorn" that had built up on the ...

TWYMAN (NATURE, November 20 ... with glass is slightly greater than that of the same solution in contact with calcite.