. Marble is a rock that is composed primarily of the carbonate minerals calcite (CaCO3) and dolomite (Ca,Mg(CO3)2). In Exercise
2, you saw the way carbonate minerals react to a drop of acetic acid. Based on this observation, why do you think people who care for monuments and sculptures made of marble are concerned about acid rain?
People who use marble to carve monuments and sculptures are always concerned because it can easily chemically weather.
Marble is a metamorphic rock derieved from limestone. The minerals that makes up limestone are calcite and dolomite. When a metamorphic transformation occurs, the rock is subjected to intense temperature and pressure. Marble is made of calcite and dolomite minerals.
Rain water dissolves carbon dioxide to form weak carbonic acid. This weak carbonic acid can easily dissolve marble thereby defacing the monument and the sculpture.
