Creatinine is a normal waste product produced by muscle metabolism. When your kidneys are functioning normally, they filter creatinine and other waste products out of your blood and send them out of the body through urine. A creatinine urine test measures the amount of creatinine in your urine and can help your doctor evaluate how well your kidneys filter waste. This is useful in diagnosing or ruling out kidney diseases and some other conditions.
These terms are based on old traditions from the west. These days, all gemstones are considered precious since they are all rare and there is a limited supply of them. The traditional list of gemstones that are considered precious stones are: Diamond.
Some semi-precious gemstones are not stones at all, but are made of organic material like amber, coral and pearl. This guide will reveal details about some of the most popular semi-precious gemstones-garnet, peridot, amethyst, citrine, blue topaz and turquoise.emi-precious gemstones are just usually more abundant (but there are a few exceptions). The value given to semi-precious gemstones depend largely on color, availably and quality. Because these gemstones typically have more sources, they are a good choice for larger, clean-eye stones and come in a rainbow of colors.