- en.wikipedia.org Cobalt glassCobalt glass—known as "smalt" when ground as a pigment—is a deep blue coloured glass prepared by including a cobalt compound...
- thesprucecrafts.com cobalt-blue-depression-glass-…Reproduction cobalt glass meant to mimic old Depression glass is usually of fairly poor quality and can have a slightly greasy feel to it in comparison to old pieces.
- blog.thepipingmart.com metals/cobalt-glass-uses-…Cobalt glass is a type of colored glass that has been used for hundreds of years, primarily because of its striking color and wide range of uses.
- yesterdaysnews.biz post/cobalt-blue-depression-…While Cobalt blue glass has been discovered in archeological sites around the globe, it wasn't until the late 19th-century that the colored glass started to be used...
- monatomicgold.co.nz secrets-of-cobalt-blue-glass/Cobalt blue glass increases the oxygen frequency in the water. The deep cobalt blue has been described as the womb of divine consciousness.
- artcormorant.vercel.app posts/mexican-cobalt-blue…Featured image of post Mexican Cobalt Blue Glassware - This unique mexican drinkware rocks glass has a cobalt blue swirl design throughout the glass.
- aboutmechanics.com what-is-cobalt-glass.htmCobalt glass is the deep blue combination of glass and cobalt metal, with the blue coloring resulting from the cobalt inclusions.
- cameo.mfa.org wiki/Cobalt_glassA vivid blue Glass that contains Cobalt oxide as a colorant. Cobalt glass was manufactured as early as the 2nd millennium BCE (Odgen 1982).
- thecarycompany.com Amber vs. Cobalt Blue, Which is Better for UV…Cobalt blue glass can provide adequate protection from UV light because the deep blue tint absorbs more light than clear glass.
- auctionguide.com lots/Cobalt-Glass/Cobalt glass also known as smalt is a deep blue coloured glass highly valued for its hue and historical significance.