What is the effect of mineral streaks in maple wood?

• A. They are caused by dry kiln shrinkage and do not affect veneer color.
• B. They are a result of mineral streaks forming near the grain.
• C. They occur when the wood is properly dried and have no veneer impact.
• D. They are a common defect that results from wounds and can lead to discoloration in the veneer.

Answer: (D)

Mineral streaks in maple veneer are discoloration defects that arise when the wood is wounded, allowing mineral-rich fluids to enter and interact with extractives in the wood. This reaction creates dark, irregular streaks that disrupt the uniform color of the veneer and reduce its visual quality. It’s about damage that lets minerals move into the wood and cause visible discoloration, not about issues from drying or kiln processes. So the best explanation is that these streaks come from wounds and can discolor the veneer.