With the large amount of synthetic amethyst out there has anyone
found a good way to tell natural from man-made? Ron
Short of sending it to a lab, if you have a loupe or microscope,
check for inclusions. If you have a very dark stone with no
inclusions, I would be inclined to assume that it is synthetic,
particularly in larger sizes. The "Japanese" amethyst, as my
supplier calls them, are actually a reconstituted stone, using
actual amethyst crystal which is regrown under ideal lab
conditions, producing a beautiful, inclusion free stone. Most
natural quartz will show some inclusions. Unfortuneately, since
the cost of amethyst is so low, it is not worth the cost of lab
analysis in most cases. Even if you are buying quantity, you may
have both natural and synthetic mixed together, so spot checking
may not even tell you if a batch is all natural.
Your only defense is to find suppliers whom you really can trust
to know their suppliers. I have found The Kay El Co. in Dallas
TX to be very honest.
Perhaps someone else can add a more precise means of
Hope this helps.