Garnet - Its Not Just Red, It's A Many-Colored Gem

Most people think of a dark red colored gemstoneRhodolite
when they think of garnet, but garnet is actually aRhodolite is the name used to describe the lovely
whole series of different gems. Beyond thepinkish, purplish or lavender Red Garnets which
well-known deep reds, garnet can be purchased inare a mixture of Almandite and Pyrope. This
cinnamon to tangerine shades orange, lightname was first used in the late 1800's to describe
yellows, deep purple, grass greens and softthe new rhododendron shade of Garnets
lavender-pink. Garnet is all these colors and manydiscovered in North Carolina. In general, Rhodolite
more. Garnets are actually a closely related groupGarnets are not as dark as the common Pyrope
of different gemstones that are available in nearlyor Almandine Garnets. Most Rhodolites seen today
every color. There are garnets that change colorare African in origin and are bright, transparent
in different light, translucent green garnets thatGems. These are probably the most popular
look like jade and garnets with stars. Some kindsgarnet seen in fine jewelry today. Common
of garnets have been mined for thousands ofshades of Rhodolite include Red stones, purplish
years and some garnet varieties were justRed and the popular Raspberry Rhodolite, a rich
discovered in the few last decades. Garnets arered-Purple with bright Lavender highlights. Rhodolite
fairly hard and durable gemstones that are idealgarnet is mined in Africa, India, and Sri Lanka.
for jewelry use, except for demantoid, which is aBrazil is producing a dark purplish Rhodolite,
bit softer and requires more protection. Becausesometimes called grape garnet, because of its
some garnets are inexpensive and have beensimilarity in color to concord grape jam.
used in the past for cheap jewelry, garnet is theTsavorite
gemstone which just doesn't seem to get theTsavorite is the most desirable of all garnets, with
"respect" it is due. This is rapidly changing in lighta wonderful purity and intensity of its beautiful
of the many new varieties of stunning colors nowgreen color. Until Tsavorite was discovered in the
available in Garnet gems.late 1960's there was no other gemstone but
Garnets have been used as ornamentation foremerald that could offer the gem buyer such a
more than 5,000 years. Garnet beads have beenrich, dark green color. This magnificent green
found in Egyptian excavations dating back to 3200garnet has been in great demand for jewelry
B.C. The breastplate of Aaron, which was wornsince its discovery, and for good reasons: it is
around 2,000 B.C., is said to have contained aharder than emerald, more durable in jewelry, less
Garnet. The Asians in the 4th century B.C. usedincluded than emerald, more brilliant when faceted,
Garnets in creating their seals. Frequently Garnetsand is much rarer than emerald. In short, it is (by
were carved into cameos and intaglios and wornall counts) a better gemstone, but it lacks the
in rings. Carbuncle is an old term which typicallymagic and the antiquity of the name "emerald".
referred to a Cabochon Garnet. The back of theFor this reason it is known to far fewer people, is
Cab was hollowed out to create a brighter Garnetin much lower demand, and is therefore much
and make it more transparent. The ancient worldless expensive than emerald of comparable color.
is full of praise for the carbuncle, the glowing redEven so, because of its beauty, Tsavorite is the
coal of a gemstone we now know as garnet. Themost expensive of the garnet family. It is actually
name garnet probably comes from pomegranate.a form of Grossular, colored green by the
Many ancient pieces of garnet jewelry arepresence of trace amounts of the metal
studded with tiny red stones that do look a lotvanadium.
like a cluster of pomegranate seeds!Tsavorite was first unearthed in Tanzania and
The Garnet group of minerals has 20 differentKenya; the name "Tsavorite" is actually a trade
species. The most commonly recognized arename created by Tiffany and Co., in reference to
Pyrope, Almandite, Spessartite, Grossular andthe Tsavo National Park in Kenya (located near
Andradite. The chemical formula for Garnet isthe Tsavorite locality). The geology of Tsavorite
complex with all species having a slightly differentis such that the supply is extremely sporadic. The
combination of elements. During crystallizationheat and folding of the rock hundreds of millions
some elements interchange to form a mixedof years ago which formed Tsavorite also
Garnet consisting of two or more differentshattered most of the crystals. It is very rare to
species. Pyrope-Almandite, Almandite-Spessartitefind Tsavorite in sizes larger than five carats, and
and Pyrope-Spessartite are examples of thesemost faceted stones are below two carats. Many
types of intergrowth. Garnets have a hardness ofdeposits of Tsavorite are small and unpredictable:
6.5-7.5 and are excellent choices for jewelry.seams suddenly narrow and disappear, giving no
Garnet crystals form in the cubic system, typicallyindication where to look next. Most of the rough is
as a 12-sided crystal or dodecahedron. They arehighly shattered in place (due to earth
available in all colors except pure Blue. Onemovements over the centuries), which accounts
problem with some types of garnets comes fromfor the great rarity of large, clean stones.
their deeply saturated color. In many types ofThere have been perhaps 40 different areas
garnet, especially Pyrope and some Almandines,where Tsavorite has been mined but only four
gems cut into large sizes will be too dark tomining ventures are still producing in commercial
reflect light and the stones will appear black. It isquantities. The Scorpion Mine in southeast Kenya
important to consider this fact when buying largeris now producing from tunnels sunk on an incline
deep colored garnets. In general, garnets are notfor more than 200 feet. The other major
treated to change their color, in the way thatproducer in this area has a large open-cast
many other gems are. Here is a brief descriptionoperation to a depth of 40 feet which has yielded
of a few of the better-known gem varieties ofa considerable quantity of Tsavorite.
garnet gems:Unfortunately, the owners are unable to continue
Almandinemining by this method and are beginning to
Almandine is perhaps the most common of theintroduce underground mining. Recently, a new
garnet family, and is the deep red to red-brownTsavorite-producing area was discovered in
stone most often thought of when people thinkLokirima, about a thousand kilometers northwest
of garnet. It is an inexpensive stone, but newof the previously known localities. Although this
mines in east Africa are producing Almandine inlocality is only producing a small quantity, it is
more desirable red to red-orange colors whichpromising that the possibility of finding Tsavorite
have no brown undertones. The major sources ofexists over a wider area than previously thought.
Almandine are Madagascar, India and Sri Lanka.Tsavorite garnet has more than tripled in price
Almandines are sometimes available in large sizes,since its introduction to the marketplace, but at
and most garnet sculptures are done in Almandine.current price levels it still sells at a tenth or less of
Entire cups or vases have been made from singlethe price of emerald of comparable quality.
crystals. Because of its depth of color andStones over 2 carats are extremely rare, and 5+
saturation, some faceted gems cut too largecarat gems of fine color are virtual museum
from this deeply colored material will not sparklepieces.
because they are too dark to reflect the light.