Glass saw its height in popularity during the Victorian
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. The addition of the
Uranium Dioxide makes the glass color yellow-green.
Glass is ALWAYS verifiable by using an ultraviolet light
(blacklight) on the glass item.
When this is done, the glass turns a bright florescent
Sometimes, even the most trained eye can be fooled by
a piece of glass that looks like Vaseline Glass, but
will not 'glow' or fluoresce bright green under a blacklight.
all yellow-green glass will turn florescent GREEN
a UV light is shined on it. When manganese is added
to the glass formula (which also makes a yellow-colored
glass) instead of Uranium Dioxide, for instance, the
end product will glow under a black light, but the color
is an orange/peach color OR a lime green color that
is much fainter than the bright neon green under UV
was added to the glass mixture to counteract the minor
traces of iron that would give the glass a 'coke-bottle'
greenish tint to it. This is not
considered vaseline glass.
see an example!
Vaseline Glass is not harmful, as the emissions from
the glass are just slightly stronger than normal background
radiation that we are all exposed to on a daily basis.