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AFRICAN BLACKWOOD FACTS
African Blackwood (Dalbergia melanoxylon) is probably best
known for its excellent tonal qualities, as well as its impressive
strength and durability. The wood is particularly well suited for
making woodwind musical instruments because of its ability to
withstand changes in temperature and humidity. When a musician blows
into a woodwind instrument, stresses are created that could
potentially result in damage to the wood
—
especially at weaker spots, such as the keyholes. African Blackwood
is resistant to these stresses, however, thanks to a combination of
hardness, denseness, close grain, and natural oiliness. Because of
these qualities, African Blackwood is highly regarded by the makers
of a variety of woodwind instruments, including clarinets, oboes,
wooden flutes, bagpipes, and fifes, among others. The wood is also
valued by woodturners, wood carvers, and fine furniture makers (in
fact, the
Ancient Egyptians are said to have used African Blackwood in their
furniture building).
With
an average specific gravity of about 1.2 (meaning that it actually
sinks in water), African Blackwood is so hard and dense that it's
been known to blunt the axes of hapless wood choppers who attempt to
cut the trees down. Not surprisingly, this extreme hardness makes
African Blackwood fairly
difficult to saw or plane. Also, if nails or screws are going to be
applied, the wood should probably be drilled first. A fair amount of oily dust
can be generated when cutting or sanding African Blackwood, so
good ventilation is a must for these procedures.
Despite its name, African Blackwood isn't always black in color. The
heartwood ranges from various shades of brown to black. The sapwood
is cream colored and contrasts sharply with the heartwood.
Exotic Wood Group's African
Blackwood blanks are divided into two categories (Select and
Premium) based on the richness/blackness of the color.
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African Blackwood
Recorder
Made by Craig C. of Canada |
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African Blackwood dries quite
slowly and has a tendency to split while drying (especially when
it's in log form). For this reason, moisture-retardant wax is
usually applied to the ends of the logs as a preventative measure. African Blackwood trees are relatively
small — normally growing to a height of only about 13 to 26 feet —
and are
indigenous to the dry regions of sub-Saharan Africa. The trees often
feature multiple trunks and can take more than 60 years to mature.
In certain parts of East Africa, African
Blackwood is known by the Swahili name Mpingo.
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