Dec 12 - 2007
Green Faceted Amethyst AAA just posted
We have just posted green amethyst. They can be viewed in our
amethyst category and in new arrivals.
Amethyst is a macrocrystalline variety of the mineral Quartz (SiO2).
Quartz is the most abundant single mineral on earth. It makes up about 12% of
the earth's crust, occurring in a wide variety of igneous, metamorphic and
sedimentary rocks.
The deep colors are the most valuable, particularly a rich purple with rose
flashes. The "Siberian" deep purple with red and blue flash commands
the highest prices. Green amethyst, new to the market, is a result of heat
treatment. The lovely mint green color is stable and permanent.
Quartz varieties are commonly separated into two groups based on the size of
the individual grains or crystals; macrocrystalline quartz in which
individual crystals are distinguishable with the naked eye, and cryptocrystalline
quartz in which the individual crystals are too small to be easily
distinguishable under the light microscope.
