If you're seeing for a piece of crystal jewellery, you will no doubt have seen many references to 'Aurora Borealis', 'Ab' etc. Many population assume 'Aurora Borealis to be a colour in it's own right. In fact, as a special coating finish, 'Aurora Borealis' is available on many of the most beloved crystal colours.
The 'Aurora Borealis' finish, not only increases the brilliance of each crystal, this special application also produces colour changes, as a direct consequent of variations, in the capability of light that falls upon it.
The 'Aurora Borealis' coating itself, consists of a metallic discontinue applied to a crystal face using water. A very thin metallic particle sheen is adhered to the glass resulting in a principal enhancement to the crystal's unabridged brilliance and dramatic colour changes.
These chromatic variations are dependent on the fundamental crystal colour and their intensity is affected by background light conditions. Spectral effects similar to those created when sunlight falls on oily water can also be seen.
The colour variations range through the spectrum from light, practically imperceptible, blues to the deepest warm hues.The actual illustrated colour changes depend greatly on the private crystal cut, dimensions and colour choice, as well as ambient light conditions but in general, darker backgrounds, tend to furnish warm 'fire-like' colours, oranges, yellows, gold, reds and ambers. While in contrast, 'light' conditions furnish ethereal blues, greens, lilac, purple and tones with a sense of unbounded 'space'. When applied to each crystal colour single definite variations can be seen, but in all, the 'Aurora Borealis' discontinue results in a astonishing and great display.
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