Georg Brandt, a Swedish chemist who is often credited with isolating cobalt around 1735, was able to show that cobalt itself was the source of the blue color in glass. The color had previously been thought to be caused by bismuth which is often found with cobalt. Much of the world’s production of this blue compound was produced during the 19th century by a single producer in Norway.
While Brandt might be credited with isolating cobalt, the color was used long before that. Discoveries show that it was used to color glass much earlier. Exploration of wreck of a trading vessel off the Turkish coast near the town of Ulaburun turned up a glass ingot of this special color which was cast in the 14th century BC.
The oldest cobalt-colored glass which have been uncovered to date was from the period of 1550-1291 BC. It is not known were the coloring compounds were obtained.
Cobalt compounds have been used for centuries to give glass, glazes, and ceramics this rich color. It has been detected in Egyptian sculpture and Persian jewelry from the third millennium BC.
At Enchanted Jewelry & Collectibles we absolutely love Cobalt Blue glass . For instance, we offer this beautiful Set of 4 Cobalt Blue Glass Stemless Wine Glasses for entertaining your guests.
We also have a charming Cobalt Blue Glass Lamp Shade Covered Candle Holder to decorate your home in warmth and charm.
We have many other collectible pieces also along with many home decor ideas. Of course, there is always my first passion...the jewelry .
Please stop by and visit us sometime...we'd love to see you.
Many thanks to Cobalt Blue Glassware for sharing their information with us.
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