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Opal
Opal is the birthstone for October and is designated for the 14th wedding anniversary. Opal’s shifting play of kaleidoscope colors is known as play-of-color. Play-of-color occurs when sub-microscopic sheres of silica, stacked as uniform layers of balls, diffract (bend) light into the spectral colors of the rainbow. This is true of all opals that exhibit play-of-color.
Opal is the birthstone for October and is designated for the 14th wedding anniversary. Opal’s shifting play of kaleidoscope colors is known as play-of-color. Play-of-color occurs when sub-microscopic sheres of silica, stacked as uniform layers of balls, diffract (bend) light into the spectral colors of the rainbow. This is true of all opals that exhibit play-of-color. …
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