Among tropical hardwoods the most
prized of all is zitan, an exceptionally rare species. Zitan is
so rare that it is virtually unknown in the West, and until recently
was thought to be practically extinct. Its tight grain and hardness
make it so dense that it sinks in water. In ancient China it was
said that the dark purple color of zitan resembled the color reserved
for the use of Qing dynasty. As a result, only the imperial household
was allowed to use zitan in China from the 17th to the 19th century.
Zitan trees grow very slowly, and zitan wood has always been in
short supply. Therefore, relatively few pieces of zitan furniture
exist, mostly in museums or private collections. Zitan
furniture is so rare that when items become available they command
premium prices. Unusual antique pieces can command prices in the
hundreds of thousands of dollars.
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Zitan, in it's raw form
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Zitan, after applying wax
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1) Zitan background
Zitan (Pterocarpus)
is a type of Leguminosae, a member of the rosewood family. The
wood originates from the tropical forests of southern China, Indochina
and islands in the Indian Ocean. Zitan is an evergreen tree, and
grows slowly, reaching 30 feet in height and 10 inches in diameter
after 300 years. Because of its extremely slow growth, zitan is
only available in limited quantities. Zitan is further divided
into two categories - da-yie-tan and xiao-yie-tan. Xia-yie-tan
only grows in one region of the world, India and rarely grows
to be more than 10 centimeters in diameter. Objects or furniture
made from ancient xia-yie-tan timber rarely appear on the international
market. Da-yie-tan, though still uncommon and thought to be extinct,
have slowly reappeared in tropical rain forests. The growth rings
of a zitan tree are spaced so close together that they are almost
impossible to distinguish without magnification. Zitan is extremely
dense, and sinks in water. When new, objects made from zitan generally
appear purple or reddish in color, but over time darken. Eventually
the wood will become almost black, and the grain becomes virtually
invisible. Although its grain is not as colorful and prominent
as that of huanghuali, the subtle texture and coloring of aged
zitan wood are incomparable.
2) Zitan history
and furniture making
From the very ancient
times, dating as early as in the 3rd century in Cui Baos Gu jin
zhu (Explanation and Ancient and Modern Matters), Chinese have
considered zitan the most precious wood. Perhaps because it is
so rare, many more pieces were made from huanghuali than from
zitan. Because of the particular scarcity of large zitan trees,
large pieces of zitan furniture are exceptional treasures.
During the Ming and
Qing periods, with European and American expatriates coming to
China, zitan furniture first became widely exposed to the world.
The export of zitan furniture started during this period. Some
of the most exquisite pieces, which typically appear in international
auction houses, are often pieces documented as missing in Chinese
historical books. Antique zitan furniture is among the most expensive
furniture in auction markets, mainly because there are so few
pieces and the scarcity of the wood means that they are typically
constructed to the highest standards.
3) Collecting
Zitan furniture
Collecting zitan
furniture has been an increasingly popular pursuit for furniture
connoisseurs. Attracted by the high prices obtained for Ming and
Qing period zitan furniture, some furniture makers had learned
to give furniture an antique treatment and even produce counterfeit
authenticity certificates. Some of these attempts are so convincing
that even experienced collectors and experts are fooled. Genuine
antique Ming zitan chairs command price as high as $30,000 at
auction. Items represented as antiques but offered at lower prices
are likely to be of more modern origin, and unlikely to be made
to the same standards of joinery. With antique zitan furniture
pieces so few and far between, and export of antique zitan furniture
from China forbidden by law, zitan furniture made currently but
with the traditions and standards of old have become increasingly
valuable. Fine examples of Chinese classical furniture exude the
refined aesthetics of centuries of Chinese culture, while their
ingenious construction and hardwood material provide durability
and maintenance-free enjoyment. Simply touching zitan objects
from time to time still serves as the most common preservation
mechanism, providing natural oils that protect the wood and polish
the surface. As the furniture ages, its patina darkens and deepens
- zitan furniture truly gets better with age.
4) Construction
of Zitan
Construction of the
zitan pieces offered by Zitantique deviates little from traditional
Chinese joinery. Our Chinese cabinetmakers are able to construct
superbly designed and proportioned pieces without nails or screws,
and with only a minimal use of dowels and glue, fully preserving
the natural essence of the wood. The use of primarily mortise
and tenon joints makes it possible for pieces to be easily dismantled
for transport when required. This also protects the furniture
from acute changes in temperature and humidity. If the furniture
is rigidly constructed, changes in humidity can cause either an
expansion or shrinkage in the wood and create stress on the joints
that could cause permanent damage.
In order to minimize
problems arising from expansion or shrinkage caused by humidity
and other weather factors, our cabinetmakers begin by treating
the zitan. After harvesting, the first step is to leave the zitan
in a warehouse in log form. After approximately one year, the
bark is removed to expose the wood and the wood is stored again
in a warehouse to acclimate. Depending on the local climate in
which the furniture will be used, the zitan will further undergo
humidity and temperature treatment. Zitan used in Los Angeles,
for example, will be processed to contain less water than that
of zitan used in Florida where the weather is warmer and more
humid. This process generally starts when a custom order has been
received. Typically the log will be soaked in water with alkali
for approximately 30 days.
The next step in
the process of making a zitan piece is joinery and carving. Only
the most experienced craftsmen are permitted to work on zitan.
Often the value of the zitan furniture is dependent as much on
the artisans reputation as the quality of the wood. Carving artists
are often commissioned to complete the production of zitan furniture,
and usually no one other than that artist is permitted to touch
the piece during the carving process. Carving is a labor and time
intensive process - a pair of Ming style official high chairs
would generally take about two months to complete.
The last step in
the process is the surface finish. When it comes to zitan, nothing
is hidden. To evoke its natural earthiness and sandy grainy patterns,
zitan wood is usually sanded finished with a clear polish or lacquer,
and not painted.