Black Walnut (Claro Walnut or Figured Walnut)
Juglans nigra (or Juglans hindsii) • Hardwood
Grain Pattern
Irregular and wavy grain with distinctive marble-like figure; features cathedral patterns and dark ink-line growth rings typical of figured crotch or burl-adjacent sections.
Color Description
Heartwood is a rich, dark chocolate brown with darker streaks and purplish undertones; sapwood (not visible here) is typically pale yellowish-gray. Exhibits low to medium luster and will lighten slightly over time with UV exposure.
Hardness Rating
1,010 lbf (Medium)
Durability Rating
Durable; highly resistant to heartwood decay, though susceptible to insect attack (especially powder post beetles).
Common Uses
High-end furniture, cabinetry, gunstocks, musical instruments (guitar backs/sides), knife handles, and fine veneers.
Geographic Origin
Eastern North America (Black Walnut) or California/Pacific Northwest (Claro Walnut).
Market Value & Sustainability
Estimated Market Value
Highly variable due to figure; $15.00 - $45.00 per board foot for premium figured/turning blanks.
Wood Age Estimate
The sample appears to be modern kiln-dried stock, likely less than 5-10 years since harvest, based on the sharp edges and lack of significant oxidation or surface wear.
Sustainability Status
Not listed in CITES Appendices or on the IUCN Red List of Threatened Species; generally sustainable and widely available from managed forests.
Workability
Generally easy to work with hand and machine tools, though figured areas like this sample are prone to tearout during planing. Glues, stains, and finishes exceptionally well.
Notable Features
Distinctive mild, spicy scent when worked. Known for excellent dimensional stability and shock resistance. Juglone content in the wood can be a mild irritant to some individuals.
Finish Recommendations
Best suited for penetrating oils (tung or linseed) or shellac to enhance the depth of the figure; polyurethane or lacquer can be used for added protection.
Identification Confidence
High; the combination of deep chocolate coloration, dark growth-ring lines, and wavy figure is characteristic of the Juglans genus, specifically Black Walnut varieties.