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.
The red color of the ruby is incomparable: warm and fiery. This gemstone has excellent hardness, durability, luster, and rarity too. Grossularite: Grossularite is generally olive green, but there are also yellow, red, brown and violet varieties.
Not every green gemstone is an emerald -- it could also be a peridot, a malachite or a piece of jade.Green gems have appeared throughout history, on the neck of Cleopatra and the fingers of Marjorie Merriweather Post, among others. Gems are divided into two categories: precious and semiprecious.ot every green gemstone is an emerald -- it could also be a peridot, a malachite or a piece of jade.