2007-04-09 09:39:32 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
Calcite (calcium carbonate, CaCO3).
2007-04-09 09:43:29 · answer #1 · answered by Fuller 3 · 1⤊ 0⤋
Remember that minerals in the carbonate group all contain the elements carbon and oxygen? This fact can help you to identify this group of minerals. When carbonate minerals are placed in vinegar, they react to release carbon dioxide gas. When you place a few drops of acid on a mineral such as calcite, you can observe the bubble of gas that form.
2007-04-09 09:47:32 · answer #2 · answered by SpringtimeChristine 3 · 1⤊ 0⤋
Actually, there are two, calcite and dolomite. Placing a drop of hydrochloric acid (HCl) on a rock will cause it to fizz (and produce carbon dioxide) is calcite is present. If it doesn't fizz till you scratch up the sample, then it is dolomite. Care should be taken in this analysis in places out west (like where I live) since a rock might fizz if it has caliche on it. I use Muriatic Acid (which is dilute HCl) to dissolve off caliche and reveal the underlying mineralogy of some rocks.
2007-04-09 12:11:05 · answer #3 · answered by Amphibolite 7 · 1⤊ 0⤋
Any mineral that has a carbonate in it will bubble with acid.
2007-04-09 09:47:20 · answer #4 · answered by science teacher 7 · 1⤊ 0⤋
calcite, and they are usually clear(not dark in colour).
2007-04-09 11:30:23 · answer #5 · answered by true_friend 3 · 1⤊ 0⤋