How to Identify Goncalo Alves
Bold dark stripes over an orange-brown ground, fine even end grain, and heavy hard feel — the cues that separate Goncalo Alves from zebrawood, rosewood, and lookalikes.
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The first clue is the striking striped figure. Goncalo Alves shows irregular, streaky bands of dark chocolate-brown to near-black running over a warm orange-brown to reddish-brown ground — an uneven, painterly stripe rather than the regular, evenly spaced lines of true zebrawood. The bold interlocked tiger-stripe of the sample is the classic look. Against this, the sapwood is a clearly demarcated pale gray-white to tan, a useful confirmation on rough or edge stock.
Check the weight and hardness. Goncalo Alves is distinctly heavy and hard in the hand, hard to dent with a thumbnail, consistent with its ~2,160 lbf Janka rating and roughly 55 lb/ft³ density. A light or easily dented board that merely looks striped is almost certainly a different, softer wood or a stain. The interlocked and often wavy grain also produces a shifting luster and a faint ribbon or roe when the surface is tilted to the light.
Look at the end grain. Goncalo Alves is diffuse-porous with small-to-medium pores that are fairly evenly distributed — much finer and more even than the large ring-porous pores of oak or ash, and it lacks the very coarse open pores of woods like padauk. The texture is fine to medium and uniform, and freshly worked surfaces have a good natural polish. Freshly cut or sanded, the wood may give off a faintly sharp or sap-like scent, a reminder of its cashew-family kinship.
The main look-alikes are other striped or reddish-brown tropicals. True zebrawood (Microberlinia) has much more regular, evenly spaced parallel dark stripes on a paler straw-yellow ground, is coarser-textured, and lacks the orange-red warmth. Rosewoods (Dalbergia) can show dark streaking but tend toward purple-brown or violet grounds, are often oilier and more fragrant, and many are CITES-restricted. Bocote (Cordia) has bold dark stripes but on a more yellow-brown olive ground with a distinct pattern and different scent. And a suspiciously uniform stripe on a lightweight, bland board points to a printed or stained imitation rather than genuine figured heartwood.
Frequently asked questions
How do I tell Goncalo Alves from true zebrawood?
Zebrawood (Microberlinia) has regular, evenly spaced dark stripes on a pale straw-yellow ground and a coarse texture. Goncalo Alves has irregular, streaky dark chocolate stripes over a warm orange-brown to reddish-brown ground, a finer more even texture, and greater weight and hardness. The warmth of the background color and the uneven stripe are the quickest tells.
Is the striped board I have real wood or a printed lookalike?
Check the end grain, edges, and weight. Real Goncalo Alves is heavy and hard, shows small evenly distributed diffuse-porous pores on the end grain, and has clearly demarcated pale sapwood where present. A printed or laminate lookalike is lighter, shows a repeating surface pattern, and has no genuine pore structure on the edges.
Could I confuse Goncalo Alves with a rosewood?
It is possible on a dark-streaked board, but rosewoods (Dalbergia) usually have a purple-brown or violet cast, are often more oily and fragrant, and several are CITES-restricted. Goncalo Alves runs warmer and more orange-red, is less oily, and is not CITES-listed. When legality or value is at stake, confirm the species rather than relying on color alone.
Does the dark striping mean the board is more valuable?
Boldly and cleanly striped boards are generally more sought-after for decorative work and command a premium, while more uniform or muted stock is cheaper. The figure is natural heartwood coloration, not a stain, so it runs through the board and will show on planing or resawing.
Goncalo Alves identified by the community
Recent Goncalo Alves samples identified with Wood Identifier.
