How to find Limestone
Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).About 10% of sedimentary rocks are limestones. The solubility of limestone in water and weak acid solutions leads to karst landscapes, in which water erodes the limestone over thousands to millions of years. Most cave systems are through limestone bedrock. Limestone has numerous uses: as a building material, an essential component of concrete (Portland cement), as aggregate for the base of roads, as white pigment or filler in products such as toothpaste or paints, as a chemical feedstock for the production of lime, as a soil conditioner, or as a popular decorative addition to rock gardens.
The first geologist to distinguish limestone from dolomite was Belsazar Hacquet in 1778.
You want to know which rocks or materials? We know that the sulfuric acid then further reacts with the limestone in a neutralization reaction. The calcium sulfate is soluble in water and hence the limestone dissolves and crumbles. Effects on Sculptures: There are many examples in both the U. S. and Europe of the corrosive effects of acid rain on sculptures. So if you pour vinegar onto limestone it will fizz which is a chemical reaction.
Things you’ll need: vinegar, some materials (like chalk, a sea shell, or rocks), and an eye dropper
If you drip 4-5 drops of vinegar onto each material the vinegar would fizz. Try this experiment on your own. Vinegar, an acid, dissolves bits of a material called calcium carbonate in the limestone. This releases carbon dioxide, a gas that rises to the surface and fizzes.