What Is The Chemical Formula For Limestone And Marble
38 42 lime cao 20 25 silica sio2 2 4 alumina al2o3 1 5 2 5 various oxides nao and mgo and 30 32.
What is the chemical formula for limestone and marble. Typically marble is composed of the following major constituents. The only difference between limestone and marble is the crystalline structure. Both marble limestone are composed of the mineral calcite. Therefore karst features can develop in marble just as they can.
When limestone is heated and has pressure put on it its calcite is melted. Chemical formula for marble is caco3. Here it means 1 calcium 1 carbon and 3 oxygen. Marble is a metamorphic rock that forms when limestone is subjected to the heat and pressure of metamorphism.
Whatever is mixed in with the limestone decides the final color of the marble. Larger crystals are formed and this is marble. If limestone is pure you get a white marble. It is composed primarily of the mineral calcite caco 3 and usually contains other minerals such as clay minerals micas quartz pyrite iron oxides and graphite under the conditions of metamorphism the calcite in the limestone recrystallizes to form a rock that is.
Calcium carbonate and calcium magnesium carbonate. Sandstone has no defined chemical formula. Marble is made of calcium carbonate caco3 which is also what limestone is made from. Stone surface material may be lost all over or only in spots that are more reactive.
Marble is a metamorphosed limestone. When sulfurous sulfuric and nitric acids in polluted air and rain react with the calcite in marble and limestone the calcite dissolves. The exact chemical composition of marble will greatly vary dependong on the location and the minerals or impurities present in the limestone during recrystallization. The chemical formula for calcium carbonate is caco3.
If it has hematite or clay in it you will get a reddish color marble. The chemical formula for calcium magnesium carbonate is camg co3 2. That s to say a limestone that has been subject to exceptional heat or pressure. Calcite has the chemical formula caco3 calcium carbonate.
Pure limestone is made up of two component minerals. Limestone crystals are much smaller than that of marble and limestone is much more porous.