What we know as a gem is precious. Emerald, diamond, coral, sapphire, topaz are natural materials. Many consider clarity and beauty to be qualities of gemstones. Although many expensive gemstones are slightly transparent, they are unique in nature. The beauty of gemstones is not only visual, but its speed or brilliance depends on the relative weight and hardness of the gemstone. The minerals from which gemstones are derived are inorganic chemical compounds with specific properties. About 3,000 different types of minerals have been found naturally in the world, at least 1400 of them are known by different names. As a result of the definitive identification of minerals and scientific classification, this difference is decreasing. Therefore, astrologers recommend the use of gemstones by calculating the zodiac sign and planetary constellation at the time of birth or in some cases by reviewing the hand lines. This app is about how gemstones work in the human body.