Know Everything About Gemstones - Girl's New Best Friend?
gemstones are just anybody's dream to have. Their natural colors more
than match your very fashionable dresses. Their sheer range could
strike you spell bound. Gemstones are precious or semiprecious
mineral stones which when cut and faceted can be used as jewels.
There is more
to gemstones than just being jewelry items. They are regarded as
lucky when worn specific to an individual's birth month. Before we
deal with this aspect in detail lets see the classification of gemstones.
Classification and Characteristics of Gemstones
There is a
tri-level classification of gemstones namely, groups, species and
varieties. Simply put, rubies which are red in color belong to
conundrum species which in turn belong to hematite group. Others like
emerald, aquamarine, goshenite, heliodor and morganite, all of them
belong to that variety known as beryl. There are over 150 different
display all characteristics of crystals like dispersion, refractive
indices, hardness, and specific gravity etc. They also possess
characters like inclusions, fractures and cleavage which play upon
their quality and values. However gemologists include all gems into
the precious list.
another important characteristic of gemstones. Simply put, hardness
means resistance to scratch which is measured in Mohs, a system
developed by an Austrian mineralogist F. Mohs. The scale of hardness
reads from 1-10 with higher number indicating the hardest. If talc is
at the bottom with just 1Moh, diamond has 10Mohs. Other popular
gemstones like feldspar, topaz and sapphire having Mohs of 6, 8 and 9 respectively.
Survey lists gemstones classified as birth stones. It is believed by
most people that wearing birthstones brings luck to their lives. It
is not surprising that all societies have this kind of faith with
regards to gemstones, albeit with differences here and there, looking
at the romancing tryst every society had with these 'stones'. The
list is in the order of calendar months with each month having at
least one gemstone specific to that month. One can find a list of
birth stones on official website of USGS.
buyers against unscrupulous sellers as more and more of them are
trying to push through synthetic gemstones as genuine pieces to
unsuspecting, inexperienced buyers. Gemstones are measured by size
and carats. (1carat=1/5th of a gram.)
gemstones, watch out for:
alters the color sometimes improving clarity
Impregnation with wax, resins etc fills cracks, flaws
filled by injecting plastic
Differential colors in center and surface indicates diffusion treatment
from reputed sellers who
produce certificates by Gemological Institute of America to prevent a
lucky stone turn unlucky.