What test will be very useful for distinguishing limestone from dolostone?
dolomite is the correct answer. Dolomite is formed from limestone, under many different varying theories, no one knows for sure to date. It's a whole other huge topic of discussion. The best way to distinguish between dolomite/dolostone and limestone are with alizarin red, a stain that will turn limestone red and dolomite pink or not stain at all, and hydrochloric acid as well, as limestone will effervesce rapidly, leaving little or no residue, and dolomite will effervesce more slowly, leaving abundant residue, depending on the maturity of the dolomite. Dolomite/dolostone usually tends to have a more well developed crystal structure than limestone, with intercrystalline porosity usually visible to some extent under a good microscope.
HCL can determine. If it is a weak reaction, it is dolomite, or dolostone. If it is a strong reaction, has a loud hissing sound when HCL is applied. it is Limestone. Due to Calcim Carbonate reaction.
maybe because the color of beer kind of resembles copper
Dolomite. Dolostone also usually has a lot of fossils in it.
