Color Descriptors are adjectives used to identify the depth of color going from lightest to darkest, as follows:

ICE is a clear or near clear color with NO gray tint.  Most modern clear insulators have a gray hue because of the nickel compounds used to de-colorize the glass.  Insulators without this gray hue are really really CLEAR, like the PYREX 128's.  Hemi's, etc. with ICE characteristics have a definite lack of the gray hue, which allows for the presence of light aqua, green or blue to be revealed when viewed through the thick areas. Try this Test: Line up several clear and light-tinted insulators on a shelf, on their sides, so you view them through the base. The clear and tinted colors will appear gray through the base, but the ice ones will shine due to the lack of (nickel) gray.

 

The difference between ICE and TINT - a green TINT still has the gray component when viewed through the base; the ICE green does not.

Milk Swirls - this term applies to insulators with significant milk swirling (30% or more).

Milky - this term applies to insulators with heavy milk swirling (75% or more).

Jade Milk - this term applies to insulators with a solid color and an opaque appearance.  It means the milk is so "mixed" that it is a homogenous translucent color, with NO significant "swirls".  Note that "Jade", by itself, is not used as a color name (there are no insulators called this in McDougald's Price Guide) - it is the translucent qualities of the glass that is at reference, not the color.

 

Vaseline - this term should NOT be used to describe a very milky, opaque, or translucent color.  It refers to vaseline glass, which can be best described as an extremely glowing Yellow-Green color that will actually glow greener and brighter under blacklight due to the Uranium Oxide in the glass. This covers a spectrum of  glass varying from Lemon Yellow to a bright Yellow-Green.  The closest thing to true "Vaseline" we have in the hobby may be a Depression Glass Green 145 H.G. Co.,  a Chartreuse EC&M, or a "Medium Apple Green / 7up" McLaughlin 164, but none of these contain the uranium oxide that causes the true, differentiating yellow-green brilliance of vaseline glass.  There are a few, extremely rare CD 134 Diamond P's that look just like the petroleum jelly product "Vaseline" (tm), however these would probably be called Yellow Opalescent.

Opalescence - this term refers to the milky white or brownish glass that glows brilliant faint orange when held up to a light, a characteristic caused by the addition of a fluorine additive to the glass.  It can be found in the CD 164.4 Fry and CD 122, 128, and 154 Hemingray products.

 

with Bubbles - this term applies to insulators with significant bubbles (30% or more).

 

Bubbly - this term applies to insulators with very heavy bubbles (filling 75% or more).

 

with Snow - this term applies to insulators with significant snow (30% or more).

 

Snowy - this term applies to insulators with very heavy snow (filling 75% or more).

 

Glower - this term (coined by Duane Davenport) is used to differentiate a normal amber signal (specifically H.G.Co. SDP varieties) from the ones that are so brilliant in clarity that they seem to "glow".  It is usually applied  to Honey Ambers and Orange Ambers with a lot of top glass.  It may also be applied to Depression glass Green Hemingray products (145's particularly), and the bright Chartreuse 123's.

Links to other Color information:

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