Hawaiian Koa
Acacia koa • Hardwood / Exotic
Grain Pattern
Highly figured with strong curly (tiger stripe) fiddleback and wavy grain. The grain is often interlocked or irregular, especially in highly figured specimens like this bowl.
Color Description
Medium to dark golden brown with rich mahogany or reddish undertones. Features high luster and strong chatoyance (the wood appears to change depth/color as light hits it). Darker streaks and bands are prominent.
Hardness Rating
1,110 lbf (Medium)
Durability Rating
Moderately Durable to Durable; generally resistant to decay but primarily used for interior decorative purposes.
Common Uses
Fine furniture, high-end musical instruments (ukuleles and acoustic guitars), cabinetry, woodturning, bowls, and veneers.
Geographic Origin
Endemic to the Hawaiian Islands, USA.
Market Value & Sustainability
Estimated Market Value
$50 - $150 per board foot for high-figure or instrument-grade stock.
Wood Age Estimate
Based on the depth of the patina and the finished state, the sample appears modern (1-20 years), although the tree itself was likely 50-100+ years old before harvesting.
Sustainability Status
Not currently CITES listed, but classified as a species of concern; harvesting is strictly regulated and restricted to private lands or salvage in Hawaii.
Workability
Generally easy to work, though highly figured grain can cause significant tearout during planing or turning. Sands well and glues without issue.
Notable Features
Famous for its chatoyancy and 'glow.' It is historically the most prized wood of Hawaii. Wood dust can be a sensitizer/irritant for some users.
Finish Recommendations
High-gloss lacquer or polished oils (tung or linseed) are recommended to enhance the chatoyance and figure depth. Resin or shellac can be used to fill grain if a mirror finish is desired.
Identification Confidence
High; the combination of golden-red hues, distinct 'fiddleback' figure, and application in a high-end turned bowl is characteristic of premium Koa.