carbon spot

الإنجليزية - التركية

الإنجليزية - الإنجليزية

تعريف carbon spot في الإنجليزية الإنجليزية القاموس.: a brown to black spot of oxidation on the surface of a coin; A spot seen mainly on copper and gold coins, though also occasionally found on U S nickel coins (which are 75 percent copper) and silver coins (which are 10 percent copper) Carbon spots are brown to black spots of oxidation that range from minor to severe -- some so large and far advanced that the coin is not graded because of environmental damage The natural oil from your hands, tiny spit that gets sprayed when speaking around unprotected copper and nickel coins can cause carbon spots Be warned, be careful; a brown or black spot on a coin, caused by impurities or oxidation; a small spot of corrosion or oxidation on a coin caused by a spot of moisture When you talk around coins - Say it, don't spray it!; A term used to describe the colour of dark spots found on the surface of a coin The spots do not normally comprise the chemical 'carbon' and are more commonly found on bronze coins; Diamonds are 99 95% pure carbon; but 25 other different mineral inclusions or small crystals, have been found within diamond as well These are not carbon spots, but rather small crystals that were trapped within the host diamond as it was forming in nature Sometimes, they just happen to be dark in color The most common mineral found within diamond is diamond

carbon spot

الواصلة

car·bon spot

kärbın spät

/ˈkärbən ˈspät/ /ˈkɑːrbən ˈspɑːt/

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