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.
A gemstone or gem (also called a fine gem, jewel, or a precious or semi-precious stone) is a piece of mineral crystal, which, in cut and polished form, is used to make jewelry or other adornments.ven the same gemstone can occur in many different colors: sapphires show different shades of blue and pink and fancy sapphires exhibit a whole range of other colors from yellow to orange-pink, the latter called  padparadscha sapphire .