Wal­nut belongs to the genus wood fam­i­ly and grows in warm loca­tions. It is a true pre­cious wood that has an uneven light to dark brown col­or, which may have a red or pur­ple shim­mer. The grain is live­ly with broad dark veins that run through it irreg­u­lar­ly. The struc­ture of the grain may be striped, flamed or cloudy. The col­or and struc­ture of the wood vary depend­ing on the loca­tion. As the wood has indi­vid­ual col­or and grain, a live­ly sur­face struc­ture is cre­at­ed. When exposed to sun­light wal­nut dark­ens and the grain becomes less visible.