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How to make gold

Gold Gold is considered a very precious metal, also a chemical element called Au. Its atomic number is (79) according to the atomic table. Its color is bright yellow and can be formed and formulated. When it is called natural, Used as a cash currency as used in the manufacture of jewels and ornaments. Gold is found in nature in the form of granules in the bottoms of rivers and rocks, or may be in the form of veins in the ground, and discovered the largest gold mass in 1896 in Australia, which weighs about (2.280) ounces. Gold is distinguished from other elements by its softness, low corrosion, and density. Gold industry The gold industry is in three stages: gold, gold, or gold. It may be a gold alloy with a diameter of 24 or it may be a gold break. If a gold alloy is converted to different caliber (18, 21 or 22) In particular, by mixing gold with other elements, but in the case of gold breakage; it is necessary to know the number of caliber, and then treated by adjusting the cal...

Properties of sapphire stone

Sapphire Sapphire is one of the most beautiful and precious stones used in many purposes. The most important of these are the jewelry industry. The ancient ones called it the King of Ancient Stones and the Stone of Stars. To be known as the stone of love and romance, symbolizes the sun, purity and wisdom of some, and others believe that it has the ability to maintain the degree of hope required to achieve the human desires. Characteristics of sapphire stone Physical properties Sapphire is one of the most difficult stones. It is the ninth of 10 metals on the Mohs scale and second only to diamonds. Sapphire construction consists of a hexagonal geological structure. Its crystalline structure indicates the weakness of the lines in which the natural stone will be cut. The crystal layer consists of two sides, with four axes that form the foundations of the stone. Therapeutic properties The sapphire stone is used to treat many diseases, especially back pain, liver cirrhosis, inflammatio...