As previously stated, Macassar is often found with brown streaks, especially closer to the heart wood of the tree. Gaboon is what I use for part of the keyboard instrument that we build. Streaks in Gaboon often tend towards gray or silver, but the truly deep black stuff is usually Gaboon. It is getting tougher to find and was added to CITES schedule II recently. You'll be seeing less of it. Thanks, Gibson.