Like all types of colored glass minerals are added to the molten mixture during production to achieve the color.
Vaseline glass marbles.
Vaseline glass like the candlestick holder shown here is a term for the transparent yellow to yellow green glass that owes its color to its uranium content.
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The addition of the uranium dioxide makes the glass color yellow green.
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Vaseline glass is a particular color of yellow green glass that is made by adding 2 uranium dioxide to the ingredients when the glass formula is made.
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These marbles owe their fluorescence to the presence of uranium glass which is glass mixed with uranium oxide.
The term is sometimes applied to other types of glass based on certain aspects of their superficial appearance in normal light regardless of actual uranium content which requires a blacklight test to verify the characteristic green fluorescence.
Vaseline glass is also called uranium glass at times and for good reason.
Factors in marble collecting is discovering that some vintage marbles glow yellow green under ultraviolet light.
These marbles owe their fluorescence to the presence of uranium glass which is glass mixed with uranium oxide.
Source of the color and glow.
Purists might argue that the green sugar bowl in the picture should not be considered vaseline glass because an additional colorant probably iron has been used in addition to the uranium to produce the green.
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Vaseline glass is sometimes used as a synonym for any uranium glass especially in the united states but this usage is frowned on citation needed since vaseline brand petroleum jelly was only yellow not other colors.
Vaseline glass collectors inc vgci is a non profit 501 c 3 organization incorporated in 1998 to educate and unify vaseline glass collectors everywhere.
In the 1920s this glass was called vaseline glass because it.
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Vaseline glass marbles this sale is for one 25mm 1 vaseline green glass marble in a lustre opaque finish.
The type of mineral added to vaseline glass is actually what makes it glow.
