When they were originally calcite, they may have been further consolidated, but retain their original structure and optical properties, whereas when they were aragonite they have sometimes been ...

The file initially posted on 2 February 2017 was replaced on 11 May 2017 to update the History section. Superseded ...

Optical audio cables, also known as TOSLINK cables, are essential for transmitting audio signals between devices in your home cinema setup. They are particularly useful for connecting older sound ...

which then binds with the calcium largely present in the soil to form calcite, a natural cement. The study identified which naturally occurring strains fabricate the enzyme required for carbonate ...