How can cobalt blue glass help us to see violet and blue light?
When it comes to collecting blue cobalt glassware, value certainly is in the eyes of the beholder. It is impossible to know what a particular person is going to fall in love with. Equally challenging is producing any piece of fine art that may appeal to every person. Regardless of how celebrated the master, there are a few individuals who will not be partial to or recognize the value of his skill. On the other hand, there are items which become collectible as well as valuable, at least to you, merely because you get pleasure from possessing them looking at them.
This is one of my lab questions for a lab about flame tests.
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If you are just starting your collection of cobalt blue glassware, or including pieces of a particular era or artist, be sure and browse the internet. It is a terrific place to enrich your education. You might moreover hit upon some remarkable bargains. But shop intelligently and enjoy your hobby of collecting period glassware. Bear in mind, it isn't what somebody else thinks a piece is worth, it is the joy it brings to the person personally which makes cobalt blue glassware worth acquiring.
It is an optical filter in flame tests to filter out the yellow flame caused by the contamination of sodium, and expand the ability to see violet and blue hues.