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Is all blue glass cobalt?

1 Answer
Is all blue glass cobalt?
No, not all blue glass is cobalt glass. Only those made with cobalt oxide can be called cobalt. In some pieces, the presence of copper oxide accounts for the color, however, cobalt glass is much more common. You'll find a collection of cobalt glass on 1stDibs.
1stDibs ExpertApril 5, 2022
Shop for Cobalt Blue Glass on 1stDibs
Vintage Cobalt Blue Glass Comport with Air-Twist Stem
Located in Worcester, GB
Vintage Cobalt Blue Glass Comport with Air-Twist Stem Vintage cobalt blue glass comport with wide shallow bowl raised on a clear air-twist stem and circular foot.
Category

20th Century Crystal Serveware

Materials

Glass

Cobalt Blue Glass Jar – Tall Vase – Mouth Blown
Located in Hook, Hampshire
Cobalt Blue Glass Jar – Tall Vase – Mouth Blown Cobalt Blue Glass Jar – Tall Vase – Mouth Blown.
Category

21st Century and Contemporary Hungarian Glass

Materials

Glass

Mid-Century Modern Cobalt Blue Glass Platter by Higgins, USA
By Higgins Glass, Michael and Frances Higgins
Located in New York, NY
Mid Century Moder serving platter in an eye catching Yves Klein Cobalt Blue glass with internal air bubbles that give the piece an interesting texture.
Category

Mid-20th Century American Mid-Century Modern Platters and Serveware

Materials

Art Glass

Midcentury Cobalt Blue Glass Table Lamp
Located in New York, NY
A single circa 1950's French blown cobalt blue glass table lamp. Measurements: Height of body: 14" Height to shade rest: 24" Diameter at widest: 11.5".
Category

Vintage 1950s French Table Lamps

Materials

Blown Glass

Cobalt Blue Glass Jar - Mid Height Vase - Mouth Blown
Located in Hook, Hampshire
Cobalt Blue Glass Jar – Mid Height Vase – Mouth Blown Cobalt Blue Glass Jar – Mid Height Vase – Mouth Blown.
Category

21st Century and Contemporary Hungarian Glass

Materials

Glass

Danish 19th Century Cobalt Blue Glass Hip Flask By Holmegaard
By Holmegaard
Located in Haddonfield, NJ
Danish 19th century cobalt blue glass hip flask by Holmegaard The flask is "tear-drop" shaped and has the most amazing deep and vibrantly blue color.    
Category

Antique Late 19th Century Danish Folk Art Glass

Materials

Art Glass

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