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.
Cutting andpolishingofgemstones There are two types ofwidelyused gem-stone cuts. Opaque or figured gemstonesare usually cut with a rounded upper sur-faceand a flat or rounded back.A stone cutting do not apply to all gemstones. Stones that are especially brittle, soft, or difficult to polishrequireadditional pro-cedures or specialtechniques.Manylapi-Fig.2. Variations of thecabochon cut.