| Original Message: the SUN and the effects on stones.....dyed and some natural, untreated..... |
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Jamey you are absolutely correct when you say: "The problem with dyed stones is that the process is temporary".........this, however does not only hold true for dyed stones, it also can pertain to Natural, Untreated stones as well! Some "unenhanced" Gemstones can fade when exposed to long durations of direct sunlight, they include: Natural Amethyst becomes pale, Natural Apatite, the pink variety, fades, Natural Aquamarine can become very pale, Aventurine, the translucent type often fades in color, Natural, untreated Beryl especially the brown or orange types may change to pale pink, Natural, untreated Chrysoprase, fades badly, Heated Amethyst can produce Citrine, which in turn may change color, Natural Fluorite, green and purple types change color, Natural, untreated Kunzite, becomes pale or loses color, Natural Celestite, fades in direct sunlight, Natural Rose Quartz becomes pale, Natural Smokey Quartz becomes pale, In fact several of these types are Heated or otherwise treated to stabilze or lessen this "paling" or colorloss from exposure to sunlight, for example Amethyst is routinely heat treated to "fix" or enhance the color, this typically lessens the fading from sunlight. Thomas All rights reserved by Bead Collector Network and its users |
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