If your doctor suspects that you have kidney disease, the test for albumin will be repeated. Three positive results over three months or more is a sign of kidney disease. You will also be given a simple blood test to estimate GFR. GFR stands for glomerular filtration rate.
Limestone Facts. Limestone is a sedimentary rock that contains at least 50% calcium carbonate (CaCO3). Because sedimentary rocks are made of various types of sediments, the other 50% of a limestone rock could be virtually any other mineral.
There are a few ways to recognize limestone. First of all, it is a soft stone and when it is scratched with a sharp object, it becomes a white powder. When limestone comes in contact with an acid like vinegar or hydrochloric acid (HCl), the stone will actually bubble and deteriorate and then neutralize the acid.