bloodstone) and (Onyx)

bloodstone)

Blood from a stone composed of silica forms a quasi-amorphous Galsdona (Chalcedony) Restaurant iron oxide. And color-General of the stone is green veins red color caused by iron oxide.

(Onyx)

Onyx is a type of garnet which is called agate Yamani which features heavily as colors mixed with white and yellow colors red and black. Onyx features on other types of opal that parallel lines, not random and has been a regular repeat of the degree of hardness seven degrees.

Jade and Amethyst

Jade or hard of aluminum silicate and sodium consists (NaAlSi2O6) or so-called Paljadat (Jadeite) and calcium silicate, magnesium and iron (Ca2 (Mg, Fe) 5Si8O22 (OH) 2) or the so-called Balinveraat (Nephrite). Often the color is green but it may take other colors, depending on the type of impurities which may reach the degree of hardness seven degrees.

Amethyst is a colored quartz types which has a purple color due to the presence of iron atoms and some other elements.

Tiger eye and Obsidian

Record of silica blended iron and magnesium oxides consists (MgO, Fe3O4) which is amorphous and lacks any regular internal atomic structure or external form regularly. The main color is black obsidian may take the other colors, depending on the impurities it contains and which gives him the brightest metal as they appear in the inside sometimes small spots resembling snowflakes.

Tiger Eye is a colored quartz types of amorphous and predominant colors are golden brown and red are often planned structure.

Copper chemical element

Copper is one of the first metal was used and the use of human party and the second metal in terms of the multiplicity of benefits after the iron has been discovered in more than a (ten thousand years BC). It is a metal reddish color to color and its properties change when combined with other elements, forming different compounds, due Awastakkak Copper name to the assets of Allatny name of the island of Cyprus (Cyprus) and named the raw (Cyprium) and then a character over the years to (Cyprum). Exists in nature in several images either individually or combined, for example, oxides, are getting pure his part by Balkahrlh or electrolysis. Copper soft material malleable react chemically or physically with the outside air source which is composed of rust known copper oxide, which also features a green color in addition to the toxic substance. Baadhafah to features that slow interaction with dilute acids.

Silver metal

I have known since antiquity silver as decorative metal values it is also used as a currency where several mines in Asia Minor was held before the year 2500 BC solutions. In the Islamic era silver used in making pots of money. And indicates the Peronist in the fourth century AH / tenth the AD to the presence of mixed silver with gold, not mixed with it and it seems that he intended to blend the union between elements of the confusion is the blending which we mean in the present time in chemistry, he says in his book Aljmaher: "In the village of Sinanh near Zruban found sometimes mixed with silver, iron and was not mingled with him flake from the center, is dissolved, found the piece of iron in pure silver metal cut and divided the secret. " On the chemical side, the silver is not hyperactive minerals. Silver does not dissolve in dilute acids, alkalis and in but dissolve in nitric acid or sulfuric acid Center, which does not react with oxygen or water at ordinary temperatures. And attacking both sulfur and sulphide silver, silver may lose its luster because of the silver sulfide on the surface portion of the metal. The bleach that contains a reasonable amount of sulfur as a component of proteins-silver loses its luster very quickly. It also loses its luster small amounts of sulfides that exist naturally in the atmosphere, which is added to the gas used in homes, such as hydrogen sulfide. The black silver sulfide among the most salts insoluble in aqueous solutions, and take advantage of this feature in the separation of silver ions from other positive ions.

Types of diamonds

Massa Klinan
Is the largest known diamond in the world was found in the Premier Mine in Alturnsgal
South Africa in 1905 and when he was weighing more than three times any urgent known at the time found, the dimensions of a raw 10 × 5, 6 × 5 centimeter and weighed 3106 carats (about 600 grams) was donated by the Government of Altersingal to Edward VII of England in holiday birthday cut This urgent need to more than a hundred pieces polished and the largest weighs 2,530 carat Star of Africa and is now called the largest polished diamond in the world.
Massa Excelsior:
Found in a national Gejrz Fontaine mine in South Africa in 1893 and was known as the greatest sparklers that desperately Klinan discovered, and was weighing 995.2 carats, a raw and then divided into 21 largest polished diamond weighing 70 carats.
Diamond jubilee:
Found in a former mine in 1895 and was weighing a raw 650.8 carat and cut and polished and became weighs 245 carats during the reign of Queen Victoria in 1897 on the occasion of the 60th anniversary of its rule and bought jewels in London in 1930, and then broadcast it sold to the Prince of eastern India.
Urgent star South Africa:
Dating back to the early days of the discovery of diamonds in South Africa, has been bought by English who was possessed of a national five hundred sheep and some horses, and then sold it to one of the gems companies in South Africa, and they weigh a crude 85.75 carats and then cut and polished to a wonderful urgent weighs 47.75 carats sold for Conteh ((Dadali)) $ 125 thousand dollars which they are made beautiful ornament for the head and surrounded by five and ninety small stone.

Aquamarine kind of gems

Aquamarine kind of gems is a type of metal chemical Alawlevin.tercepth of magnesium silicate and iron double Mg, Fe) 2SiO4) and the presence of iron, with its combination makes it green. DO metal close to the stone emerald installation, found in igneous rocks basal In limestone, was formerly named all the gems of color oblique green Balzbergd, has erred ancient linguists as fired one label on a stone emerald, aquamarine, and their own people of the art of ancient who dispersed Between these two stones. [1] known in the world of jewelry aquamarine, turquoise, olive transparent and high hardness of up to 5.6 degrees on the Mohs scale of hardness For comparison, the granite rock of 5 degrees and a longer aquamarine color olive mines rare presence in the world.