Detection of synthetic amethyst. It is not easy to detect
synthetic quartz, except possibly by transparency to UV light.
-
When colour zoning is seen in quartz, it is probably of
natural origin, but very broad, rather sharply defined colour
zoning is typical of the synthetic material. -
Some of the early synthetic amethyst have a smoky tinge.
-
The habit of synthetic quartz crystals is unlike that of
natural quartz, with the largest face being a basal pinacoid,
something rarely seen in natural quartz. A “cobbled” appearance
is evident on the surface of many synthetic crystals. This is
associated with imperfections within the crystals, and
theorically provides a means of identifying quartz crystals even
when cut. This effect may occasionally be seen with concentric
overhead illumination, where light is directed onto the surface
along the line of view. -
If the seed plate is seen, the crystal is certainly a
synthetic. -
“BREADCRUMB” inclusions with occasional spiky ends may be
seen near the seed plate.
Look for:
-breadcrumb inclusions,
-many stones are nearly flawless,but this is not a positive
proof,
-color zoning tend to be shades of purple and colorless but
again may be too subtle to use for positive identification.