Blackwood Acacia Bottlestopper

1.75 x 1.75 x 3

Tasmanian Blackwood (Acacia melanoxylon) is a beautiful Australian hardwood prized for its rich golden-brown coloration, striking grain patterns, natural luster, and excellent woodworking characteristics. Often compared to Hawaiian Koa because of its similar appearance and botanical relationship, Tasmanian Blackwood is highly sought after by woodturners, pen makers, knife makers, instrument builders, and fine woodworkers.

This distinctive hardwood features warm honey, amber, reddish-brown, and chocolate-brown tones, often enhanced by darker streaks and attractive grain variation. Select pieces may display curly, fiddleback, wavy, or other figured grain, creating a remarkable shimmering appearance under a clear finish.

Its combination of natural beauty, moderate density, and excellent workability makes Tasmanian Blackwood an outstanding choice for custom pens, knife handles, bottle stoppers, game calls, decorative turnings, musical instrument components, and specialty woodworking projects.

Each piece of Tasmanian Blackwood offers its own unique character, making this exceptional Australian hardwood a favorite among craftsmen seeking beautiful, distinctive wood blanks.

Botanical Information

Botanical Name: Acacia melanoxylon R.Br.

Family: Fabaceae (Leguminosae)

Genus: Acacia

Species: Acacia melanoxylon

Wood Type: Temperate hardwood

Primary Origin: Australia, especially Tasmania and southeastern Australia

Common & Trade Names

Tasmanian Blackwood, Tasmanian Blackwood Wood, Australian Blackwood, Blackwood, Australian Acacia, Blackwood Acacia, and Acacia melanoxylon.

Important: Tasmanian Blackwood is not the same species as African Blackwood (Dalbergia melanoxylon). Despite the similar common names, these are botanically distinct hardwoods with different properties and trade considerations.

Origin & Distribution

Tasmanian Blackwood is native to Australia, particularly Tasmania, Victoria, New South Wales, and other parts of southeastern Australia.

The species grows in temperate forests and moist woodland environments, where it can develop attractive heartwood and distinctive grain patterns.

It has also been introduced and cultivated in other parts of the world.

Tasmanian Blackwood has a long history of use in Australian furniture, cabinetry, decorative woodworking, musical instruments, and fine joinery.

Because of its warm coloration and attractive figure, it is especially valued for specialty woodworking and premium turning blanks.

Color & Appearance

Tasmanian Blackwood is admired for its rich, warm coloration and attractive natural grain.

Heartwood may display:

Golden brown

Honey brown

Amber

Orange brown

Reddish brown

Medium chocolate brown

Dark brown streaks

The sapwood is generally pale yellow to creamy white and contrasts with the darker heartwood.

Some pieces exhibit dramatic color variation or highly figured grain, while others display more subtle, straight-grained patterns.

Select Tasmanian Blackwood can show beautiful chatoyance, creating a shimmering effect as light moves across the finished surface.

Grain & Texture

Tasmanian Blackwood generally features a medium to coarse texture, with grain ranging from straight to wavy, interlocked, or highly figured.

Common grain characteristics include:

Straight grain

Wavy grain

Interlocked grain

Curly figure

Fiddleback figure

Irregular natural streaking

Highly figured pieces may display exceptional visual depth under a clear finish.

Its natural luster and attractive grain make Tasmanian Blackwood especially desirable for projects where the wood's appearance is the main feature.

Wood Characteristics

Tasmanian Blackwood is a moderately dense hardwood offering a desirable balance of strength, stability, and workability.

Representative characteristics for Acacia melanoxylon include:

Average Dried Weight: Approximately 40 lbs/ft³ (640 kg/m³)

Specific Gravity: Approximately 0.54 basic / 0.64 at 12% moisture content

Janka Hardness: Approximately 1,160 lbf (5,160 N)

Grain: Straight, wavy, or interlocked

Texture: Medium to coarse

Natural Luster: Moderate to high

These values are representative of the species. Individual blanks may vary depending on growing conditions, moisture content, and grain structure.

Stability & Durability

Tasmanian Blackwood is generally considered moderately durable, with heartwood offering some resistance to decay.

Properly dried Tasmanian Blackwood provides good dimensional stability for many interior woodworking applications.

Like all hardwoods, it can expand or contract with changes in environmental moisture.

Highly figured or interlocked grain may contain internal stresses, making proper drying, storage, and acclimation especially important.

For small precision projects such as pens, knife handles, and game calls, properly dried Tasmanian Blackwood can provide excellent long-term performance.

Workability & Woodturning

Tasmanian Blackwood is highly regarded for its excellent workability and attractive finished appearance.

Straight-grained material generally machines, turns, and sands well with sharp tools.

Highly figured or interlocked pieces may require lighter cuts and careful tool presentation to minimize tear-out.

Tasmanian Blackwood is particularly well suited for:

Custom pens

Pen turning blanks

Knife handles

Knife scales

Bottle stoppers

Duck calls

Game calls

Turkey call components

Small bowls

Decorative vessels

Jewelry

Small boxes

Custom handles

Fine woodworking projects

Its combination of warm coloration, attractive grain, and natural luster makes it especially appealing for decorative projects and custom woodturning.

Finishing

Tasmanian Blackwood responds beautifully to clear finishes that enhance its natural color, depth, and grain.

Popular finishing options include:

Danish oil

Tung oil finishes

Hardwax oils

Shellac

Lacquer

Polyurethane

Cyanoacrylate (CA) finishes for pens

Wax finishes

A clear finish can deepen its golden-brown and reddish-brown tones while highlighting curly or figured grain.

Careful sanding through progressively finer grits helps produce a smooth finished surface.

For highly figured pieces, careful tool presentation and sanding are especially important to avoid torn grain.

Ideal Uses

Tasmanian Blackwood wood blanks are excellent for:

Pen blanks and custom pens

Woodturning projects

Knife handles and knife scales

Bottle stoppers

Duck calls and game calls

Turkey call components

Small bowls and vessels

Jewelry and accessories

Decorative boxes

Custom handles

Fine carving

Musical instrument components

Guitar and ukulele parts

Specialty woodworking

Collectible and artistic projects

Health & Safety

Tasmanian Blackwood wood dust may cause irritation and allergic reactions in some individuals.

Potential concerns include:

Skin Irritation: Contact with wood dust may cause irritation or allergic contact dermatitis.

Respiratory Irritation: Inhalation of dust may irritate the nose, throat, and respiratory system.

Eye Irritation: Fine airborne particles may cause redness and discomfort.

Sensitization: Repeated exposure may increase sensitivity in susceptible individuals.

When cutting, sanding, drilling, or turning Tasmanian Blackwood:

Use effective dust collection.

Wear properly fitted respiratory protection appropriate for fine wood dust.

Use safety glasses or a face shield as appropriate.

Avoid prolonged skin contact with accumulated dust.

Maintain adequate workshop ventilation.

Clean work areas using dust extraction rather than compressed air.

As with all woodworking materials, appropriate protective equipment and responsible dust management are recommended.

CITES & Conservation

Tasmanian Blackwood (Acacia melanoxylon) is not generally listed under CITES.

The species is widely distributed in Australia and has also been introduced into other regions.

However, harvesting and distribution may be affected by local forestry regulations, land management practices, and international import requirements.

Responsible sourcing remains important, particularly for wood harvested from native forests.

International buyers should verify any applicable import regulations and documentation requirements.

Interesting Facts

Related to Hawaiian Koa: Tasmanian Blackwood and Hawaiian Koa (Acacia koa) both belong to the genus Acacia.

Australian Heritage: Tasmanian Blackwood has been used for generations in fine Australian furniture and cabinetry.

Musical Instruments: The wood is valued for guitars, ukuleles, and other instrument components.

Exceptional Figure: Select pieces can display beautiful curly, fiddleback, or wavy grain.

Natural Chatoyance: Highly figured Tasmanian Blackwood may shimmer under a clear finish.

Not African Blackwood: Despite the similar name, Tasmanian Blackwood is botanically unrelated to African Blackwood (Dalbergia melanoxylon).

Why Choose Tasmanian Blackwood?

Tasmanian Blackwood combines rich natural coloration, attractive grain patterns, excellent workability, and beautiful finishing characteristics in one premium Australian hardwood.

Its golden, honey, amber, reddish-brown, and chocolate tones create a warm, elegant appearance, while curly and figured pieces can offer remarkable visual depth.

For woodturners, pen makers, knife makers, call makers, instrument builders, and fine woodworkers, Tasmanian Blackwood offers an exceptional material for creating distinctive, high-quality projects.

Whether you're turning a custom pen, crafting a knife handle, making a bottle stopper, or creating a decorative piece, Tasmanian Blackwood provides natural character and beauty that make every finished project special.

Oakbrook Wood Turning Supply offers Tasmanian Blackwood for craftsmen seeking premium hardwood blanks with beautiful color, attractive grain, and excellent turning potential.

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