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GRATING SPECTROSCOPE MODEL NO.- ACM-GS-2236
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GRATING SPECTROSCOPE MODEL NO.- ACM-GS-2236
Weiber's spectroscope is ideal tool of the modern gemologist. Our equipment is particularly suitable the infrared or near infrared spectroscopes.
Application Ÿ Handheld Spectroscope Ÿ
Visible Light Shows absorption lines of the elements involved in producing its color.
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Separation of ruby (chrome) against red or pink sapphire (iron) to name only one example.
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Liquids or Flames colored by metal-salts.
Conditions for Proper Functioning of Spectroscope Ÿ This tool require Ÿ A Good Training Ÿ An appropriate Light source
The Weiber's Spectroscope dispalys the following results Ÿ Colorless stones show no absorption spectrum Ÿ
The sunlight shows a typical absorption spectrum the Fraunhofersche lines
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Fluorescence lamps show an emission spectrum.
TECHNOCRACY PVT. LTD.
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GRATING SPECTROSCOPE MODEL NO.- ACM-GS-2236
Detailled Technical Clarifications What is it? This handy piece of equipment is perhaps the most important tool in gemology, although GIA students generally get a limited exposure to its use. The spectroscope breaks up the light being transmitted from a gemstone into its spectral colors, which allows the gemologist to see the various wavelengths that are being absorbed by the gemstone. Thereby allowing the gemologist to know what elements are contained in the gemstone that is causing the absorption. Making this one of the most important tools in identifying gemstones. How does it work?: Elements within a gemstone will absorb certain levels of energy. And light is energy. Therefore certain elements in a gemstone will absorb certain colors of light based on what energy level they are absorbing. The spectroscope allows us to see which color of light, or energy, is being absorbed, thereby allowing us to know what elements are in a gemstone. This, in turn, allows us to know more about the gemstone, ie...identification, where it came from, what causes it to have color, etc.... When you look through a spectroscope you will see lines or bands missing from the colors. This is where elements within the stone have absorbed that level of energy or light, letting us know that the element exists within the stone. Here is an example of the absorption spectrum of zircon:
The wavelengths of light are measured in nanometers.Abbreviated nm.These number are applied to the scale of the spectrum as a guide to show what wavelengths are being absorbed. It should be noted that gemologists should learn to use the spectroscope without having these numbers necessary. Since most hand held
TECHNOCRACY PVT. LTD.
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GRATING SPECTROSCOPE MODEL NO.- ACM-GS-2236
TECHNOCRACY PVT. LTD.
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GRATING SPECTROSCOPE MODEL NO.- ACM-GS-2236
spectroscopes will not have these scales visible through the unit. So know where the numbers are, but learn to use your spectroscope without the need to have them visible. The wavelengths of light are measured in nanometers.Abbreviated nm.These number are applied to the scale of the spectrum as a guide to show what wavelengths are being absorbed. It should be noted that gemologists should learn to use the spectroscope without having these numbers necessary. Since most hand held spectroscopes will not have these scales visible through the unit. So know where the numbers are, but learn to use your spectroscope without the need to have them visible. You can see that the elements contained are very different. You can also see why you can identify many gemstones with nothing more than a spectroscope based on the elements contained in them.
TECHNOCRACY PVT. LTD.
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