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الإنجليزية) 1:
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Metals launched the rays as a result of decomposition of her atoms and this radiation can be detected by special devices such as Geiger of radioactive minerals alioraninait walthorait walmonazight walbchlblnd.Magnetism:The property that makes some minerals are affected by magnets such as metal almagntight walbirohotight. Some minerals are not affected by it at all, such as quartz and other minerals.Electrical characteristics:Some minerals such as Topaz and sulfur that are susceptible to electrical discharges when subjected to friction or massaging her with a piece of silk so pick up paper or small pieces of hay. The minerals are separated for the electrification of metal diffusion susceptibility to electrostatic separation method.Fission:And this property can help in identifying minerals as most metals have degrees of fusion fixed if pure gold fuses when 1062 ° c while the fused silver at 960 ° c.. Etc.Sensory characteristics: 1. odour:Some minerals smell especially when exposed to friction or heat or breathing, such as: A-the smell of mud: the smell produced when you put water on mineral kaolin.B-the smell of rancid when heated some samples of limestone Ben.C-smell and by alliaria: some metal arsenic when being rubbed or heated such as metal arzniobayrait.D-sulphuric odor: When hydrogen sulphide gas starts to heat the metal pyrite.2-texture:The effect of touch metal, and metal is described as texture:A-cool: the unique minerals of racism such as gold and copper.B-lipoprotein: a distinctive metal talc.C-soft: a distinctive metal alaubal.3. taste: Some minerals taste, and could see the following types: A. alkaline taste.B-flavored brine.C-taste bitter.D-taste moist.Each taste distinguishes a particular metal, a characteristic not recommended to rely on.Optical properties of metals:These characteristics can be summarized briefly as follows:-A. refractive index:If a light beam fell on a metal surface, this beam is broken when the effect of the sample. If the incidence angle is the angle of refraction, and is, the refractive index can be written in the following form:-Refractive index (m) = ja sJA kThis equation is called the law of SNL.And the fracture is fixed to the metal one regardless of the angle of incidence, and this factor is different for different minerals, the refractive index of mineral zircon equals 1, 93 and refractive index value of quartz from 1553 to 1544 either refractive metal Fluor equals 1, 43.B-double refraction:It is refracted beam falling when the force of metal to two for each angle of refraction is different, and minerals that are marked as broken beam falling to 2 spokes broken called metals of double refraction. Examples of such minerals, metal alkalsight wemaamla fracture of the metal are the 1658 and 1486 by a margin of Matteo Migliore.The metal is called a refractive fixed no matter the direction of fall of light, these are called optically homogeneous metals, and minerals homogeneous scanned do not separate beam falling up to two, but refracted beam falling to only one beam.Chemical classification of metals:There is a metal in the form of a chemical compound can be by chemical analysis of its component elements and also see chemical equation and there are several ways to split the minerals, chemical classification, however, is simpler and more comprehensive ways to split the minerals, the classification of most universities and museums of geology at present. The minerals are divided in terms of chemical structure into several groups were the following:1. group metals racism: such as gold, diamonds and sulphur.2. a base metal sulphides are minerals that unite the sulfur with other elements, such as aljulina and pyrite.3. metal oxides are mineral resulting from the Union of alksgin to other items, such as quartz walhimatight wallimonight.4. Group halides: a metal that combine elements of the halogen elements (fluorine, chlorine, bromine, wished to) such as metal alhalight fluorite.5. set the phosphate minerals: the metals which combine elements with a phosphate, such as metal alabatight.6. Group of carbonate minerals: the metals which combine elements with carbonates, such as alkalsight dolomite.7. set metal sulphates is metal which combine elements with a sulfate as gypsum alanhidright.8. set silicate minerals: the metals that make up the result set silicate association with one or more items. The largest group of silicate minerals, which in turn are divided into several groups, the most important are:-A. alvelsbarat: including the alvelsbarat potash, such as alarthoklis and alvelsbarat as alalbeit as well as sodic alvelsbarat limestone such as alanorthight.B-olefins: such as the metal industry.C-albiroxinat: like alaugait.D-amphiboles: such as hornblende.Moved to tap in.
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