Deeper blues are obtained by adding up to ten pounds of cobalt oxide to a ton of glass. To produce a blue colour in glass, you only need to add five ounces to a ton of glass. Small amounts of cobalt (around 1 ounce per ton of glass) are used to neutralise the yellow tint of iron in glass such as window glass. Surprisingly it also makes up 4.3% of vitamin B12. Since then it has been used increasingly in metal alloys, and over 80% of today's production of cobalt is used as a metal, - it is, for example, a component of the best magnets. There was even one piece of cobalt blue glass in Tut-Ankh-Amen's tomb in Egypt.īefore the 1920s the world's production of cobalt was primarily used as a glass and ceramic colorant. It was discovered by a Swedish chemist, Georg Brandt, in 1742 although the coloring properties of the ore has been known since very ancient times. It only requires a small amount of cobalt oxide to produce a deep rich blue.Ĭobalt is a metal, found in copper and nickel ores in many countries, but mined chiefly in Africa, USSR, Australia, Canada and smaller amounts in other countries. Copper is a more delicate colorant than cobalt. Most blue glass is given its color either from cobalt oxide or from copper oxide added to the molten glass. It is made by incorporating cobalt oxide in the molten glass mixture. To help with personalizing your space and truly making it your own, find an extraordinary collection of decorative objects on 1stDibs.Cobalt Blue Glass information from the Glass EncyclopediaĬobalt blue glass is normally a deep rich blue like the vase on the left. Objects really elevate libraries and can also make them more personal.” “I love magnifying glasses,” says Alex Assouline, global vice president of luxury publisher Assouline, of adding one’s cherished objects to a home library. There’s more than one way to style your bookcases, and decorative objects add a provocative dynamic. Where is the jewelry box from? Is there a story behind it?Ībstract sculptures or an antique vessel for your home library can draw attention to your book collection and add narrative charm to the most appropriate of corners. If you’re showcasing pieces from the past, a vintage jewelry box for displaying your treasures can spark conversation. Translucent decorative boxes or bowls made of an acrylic plastic called Lucite - a game changer in furniture that’s easy to clean and lasts long - are modern accents that are neutral enough to dress up a coffee table or desktop without cluttering it. Vintage ceramic serveware can pop along white open shelving in your dining area, while large stoneware pitchers paired with woven baskets or quilts in an open cupboard can introduce a rustic farmhouse-style element to your den. If you’ve amassed an assortment of functional pottery over the years, think of your mugs and salad bowls as decorative objects, ideal for displaying in a glass cabinet. The key to styling with decorative objects is to work toward making a happy home that best reflects your personal style.Ĭeramics are a versatile addition to any home. But with so many materials and items to choose from, it’s easy to get lost in the process. The right home accent, be it the simple placement of a decorative bowl on a shelf or a ceramic vase for fresh flowers, can transform an area from drab to spectacular. Every time you move into a house or an apartment - or endeavor to refresh the home you’ve lived in for years - life for that space begins anew.
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