BBC is just reporting that Calcium Carbonate could help to reduces temperature in buildings in a world facing global warming. Now, wasn't this used in Goan homes built over the past itself? Anyone remembers ximppio at the Mapusa market?
QUOTE *Calcium carbonate* is a chemical compound <https://en.wikipedia.org/wiki/Chemical_compound> with the formula <https://en.wikipedia.org/wiki/Chemical_formula> Ca <https://en.wikipedia.org/wiki/Calcium>CO3 <https://en.wikipedia.org/wiki/Carbonate>. It is a common substance found in rocks <https://en.wikipedia.org/wiki/Rock_(geology)> as the minerals <https://en.wikipedia.org/wiki/Mineral> calcite <https://en.wikipedia.org/wiki/Calcite> and aragonite <https://en.wikipedia.org/wiki/Aragonite> (most notably as limestone <https://en.wikipedia.org/wiki/Limestone>, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of pearls <https://en.wikipedia.org/wiki/Pearl> and the shells of marine organisms <https://en.wikipedia.org/wiki/Seashell>, snails <https://en.wikipedia.org/wiki/Snail>, and eggs. Calcium carbonate is the active ingredient in agricultural lime <https://en.wikipedia.org/wiki/Agricultural_lime> and is created when calcium ions in hard water <https://en.wikipedia.org/wiki/Hard_water> react with carbonate ions <https://en.wikipedia.org/wiki/Carbonate_ion> to create limescale <https://en.wikipedia.org/wiki/Limescale>. It is medicinally used as a calcium <https://en.wikipedia.org/wiki/Calcium> supplement or as an antacid <https://en.wikipedia.org/wiki/Antacid>, but excessive consumption can be hazardous and cause poor digestion. https://en.wikipedia.org/wiki/Calcium_carbonate UNQUOTE FN -- FN* फ्रेड्रिक नोरोन्या * فريدريك نورونيا +91-9822122436
