Most likely spalted burl walnut; species uncertain, with maple or another hardwood burl as alternatives. — Possibly Juglans nigra; not confirmable from this image.

Most likely spalted burl walnut; species uncertain, with maple or another hardwood burl as alternatives.

Possibly Juglans nigra; not confirmable from this image. · Hardwood; likely domestic, figured burl stock.

AI-generated identification · may be incorrect
Type
Hardwood; likely domestic, figured burl stock.
Origin
If black walnut, eastern and central North America.
Hardness
If black walnut: about 1,010 lbf, Medium.
Durability
If black walnut: Moderately Durable; heartwood has some decay resistance, but burl defects and spalting can weaken the piece.

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Grain Pattern

Highly irregular burl grain with apparent spalting and deep natural voids; cut orientation is unclear.

Color & Appearance

Dark brown to nearly black with lighter brown patches; surface appears aged or heavily finished. Sapwood and natural color cannot be reliably distinguished.

Hardness (Janka)

If black walnut: about 1,010 lbf, Medium.

Durability & Decay Resistance

If black walnut: Moderately Durable; heartwood has some decay resistance, but burl defects and spalting can weaken the piece.

Value & Age

Estimated Market ValueNot an official valuation

Highly variable; figured walnut burl slabs may sell for roughly $20–$100+ per board foot, depending on size, figure, condition, and local market.

AI estimate for general guidance only — not a professional appraisal. Actual value depends on grade, dimensions, condition, and local market demand.

Wood Age Estimate
Cannot estimate from the image; dark color and surface wear alone do not establish age.

Common Uses

Decorative slabs, veneer, furniture accents, bowls, and turned objects; this rough, voided piece may need stabilization.

Geographic Origin

If black walnut, eastern and central North America.

Workability

Burl grain and voids can tear out and split; sharp tools, gentle cuts, and possible resin stabilization are often needed.

Finish Recommendations

Remove loose material, test finish on a small area, and consider stabilizing voids before applying oil or clear lacquer/polyurethane.

Notable Features

Pronounced burl-like growth, irregular figure, and apparent inclusions or voids; no dependable scent or end-grain details are visible.

Learn more about Most likely spalted burl walnut; species uncertain, with maple or another hardwood burl as alternatives. in the Wood Encyclopedia
Identified October 4, 2026