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.
If you're talking about beach limestone, one type is usually first  formed as a piece of coral reef. This piece will later on get  washed up to shore and slowly turn into a â¦ piece of limestone  through the years. 6 people found this useful. Paul Jones.