Either Afzelia or Amboyna burl block - hard to identify which it is, excellent figured wood.  Not stabilized, air dried for over 13 years - very dry wood, nice burl figure.
Amboyna Burl Wood Blocks Blanks Knife Scales Turning Pen Blank
Good wood turnings, pens, knife scales, or inlay work, pool ques, jewelry, rings or pendants.
 
1 Aflezia / Amboyna burl blocks
 
Weight = 4.8 lbs

14 1/4" long (max length)
4" wide
3" thick
 
Free shipping to USA address only
more pics here woodulikeinc.com/wood-blanks