|
Though red is the most predominant
color amongst Garnets, they can be found in a
rich range of shades. A “Garnet” is
the denomination of a group of over ten different
stones with similar chemical structure. Garnets
can appear as green, orange, yellow, earthy and
umbra shades. Blue is the only color not available
as a Garnet. The realm of Garnets also possesses
rarities such as asterism, or stones which change
their color in daylight and artificial light.
Garnets not only come in many colors but also
under many names: Andradite, Demantoid, Grossularite,
Hessonite, Pyrope, Rhodolith, Tsavorith, Spessartine,
Uwarowite. The fiery red Pyrope was popular as
a gemstone in the 18th and 19th centuries. Bohemian
Garnets from the northeast of the kingdom of Bohemia
were also popular at the time. In Europe the Garnet
often adorned Victorian jewelry, being arranged
into shapes that mimicked the patterns of seeds
in a pomegranate. Even today they are arranged
tightly together in this pattern, mainly in the
Czech Republic. Garnets seen arranged in rosette
patterns are generally the larger Almandines,
from Alabanda in Asia Minor. They are preferred
as central stones as the crystals are found in
larger dimensions. Rhodolith, a crystal mixture
from Almandine and Pyrope, is a popular red Garnet
showing a velvety red with a fine purple or raspberry-colored
undertone. Originally discovered in the USA, it
is mainly found nowadays in gemstone mines in
East Africa, India and Sri Lanka.
Some years ago bright orange to red Spessartine
Garnets, which were originally named after their
occurrence in the German Spessart Mountains, were
discovered in Namibia. Prior to this discovery,
spessartines were considered very rare and collectable.
Afterwards they became referred to as “Mandarin”
Garnets for their orange color, and were extremely
popular. The mines in Namibia could only last
a few years, as prospecting in the bush was very
difficult and expensive, and the stones became
again rare until another sensational discovery
in Nigeria. The Nigerian and Namibian stones are
so similar in color and brilliance that only experienced
experts can tell them apart.
Grossularite is a green Garnet which ranges in
shade from yellow to green to brown in its highlights.
In the last year of the 20th century large Grossularite
occurrences were discovered in Mali. These Garnets
are incredible brilliant and are often used in
ethno-centric jewelry. Tsavorith or Tsavolith
is probably the most popular of the green Garnets.
It was discovered in 1967 by British geologist
Campbell R. Bridges in North-East Tanzania, near
the famous Tsavo-National Park. It ranges from
a light smooth green to a deep velvety green.
The rare green Demantoid is a gemstone for connoisseurs
and lovers. Carl Fabergé, Russia’s
famous court jeweler, loved the brilliant green
Garnet from the Urals and often used it in his
creations. Demantoids from Namibia are very colorful
and brilliant, but lack the notable “horsetail”
inclusions which set apart the Russian Demantoids.
It is reported that Noah adorned his ark with
Garnets. Garnet is often found in jewelry from
ancient Greek, Roman, and Egyptian times. They
were considered precious talismans and protective
stones. They were believed to prevent evil and
illuminate a dark night.
Garnets have a hardness from 7 to 7.5 on the
Moh’s scale. They are thus very sturdy and
resistant to scratches. They are, however, affected
by heat and hard impact. They are uncomplicated
to work into jewelry. Garnets have a high refraction
of light, and thus an amazing brilliance. The
word “Garnet” stems from the Latin
word for “grain”, and as rough crystals,
Garnets are an interesting graininess which are
reminiscent of the seeds of a pomegranate. Garnet
was referred to in German in the past as “karfunkel”,
which is the word for the glowing coals after
a fire. Other names for the stone are Arizona
Ruby, Arizona Spinel, Montana Ruby or New Mexico
Ruby.
Garnets come mainly from African countries, also
from India, Russia, Central and South America.
Cutters all over the world shape them in many
classical forms and more and more also in modern
fancy designer’s cuts.
|
|