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Hi Barbara, The problem with dyed stones is that the process is temporary. Even if you cannot remove the dye with a solvent, dyes are not stable compounds. They fade from exposure to light (probably ultraviolet, but who knows why). The violet and pink colors that are applied to agates (unlike traditional beizen colors) fade easily. Often in as short a time as a year. At the very least, people who use dyed materials should warn clients to keep those things out of direct sunlight and strong artificial light, as much as possible. I suppose many people prefer natural stones—they think. However, the range of treatments that are routine, and are thousands of years old is not appreciated by many bead collectors. A lot of this stuff is presumed to be "natural" when it isn't. Let's start with carnelian.... Take care. Jamey All rights reserved by Bead Collector Network and its users |
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