Graphite is a dark gray to black, very soft, shiny metallic mineral with a distinctive greasy feeling. One of the Earth's softest minerals, graphite will easily leave marks on paper, which is why it is used for fine artist pencils. Even modern …
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Silver is a transition metal with element symbol Ag and atomic number 47. The element is found in jewelry and currency for its beauty and value and in electronics for its high …
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The diverse qualities of graphite provide artists with many creative possibilities. The thin, refined strokes produced by harder, denser sharpened graphite appealed to a neoclassical portraitist …
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Graphite. Graphite has a layer structure which is quite difficult to draw convincingly in three dimensions. The diagram below shows the arrangement of the atoms in each layer, …
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Graphite is used in pencils, lubricants, crucibles, foundry facings, polishes, brushes for electric motors, and cores of nuclear reactors. Its high thermal and electrical conductivity …
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Because of its semimetallic nature, graphite has been used since 1900, in batteries, in steel making, and for making crucible. Graphite is considered to be the highest …
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Silver is used in jewelry, tableware, coins, scientific equipment and in photographic processes. Silver tarnishes black with a surface layer of acanthite (silver sulphide), especially when …
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Graphite is most often found as flakes or crystalline layers in metamorphic rocks such as marble, schist's and gneisses. Graphite may also be found in organic-rich shale's and coal beds. In these cases, the graphite itself probably resulted from metamorphosis of dead plant and animal matter. Graphite is also found in veins a…
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Silver is the most electrically conductive element, followed by copper and gold. Even though silver is more conductive, copper and gold are used more often in electrical applications because copper is more affordable …
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