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Chelsea Filter

A chelsea filter can be a very useful tool for jewelers. The Chelsea Filter is able to distinguish every imitation of tanzanite on the market from the genuine thing. It can determine the chromium level of Colombian emeralds. This little filter has many functions that gemologists even don’t know about. This important tool is essential for gem identification in many occasion. You will need to use strong light to illuminate the gem under observation. The color filter is very close to your eyes to view. You can also use a spectroscope to make this determination, but the Chelsea filter is an effective way to distinguish these gems.
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