Prunus spp. of the family Rosaceae, including at least P. aganopersica, P. andersoni, P. caroliniana, and P. persica. In addition to that, there are another 30 or so species from about 20 genera that ALSO have the word peach as all or part of one or more of their common names, so there's a lot of room for confusion. Unless otherwise specifically stated, the pics on this page were just listed as peach.
web pics:
moistened log section
log cross-section
plank
turning stock, waxed
bowl blanks, probably waxed but I'm not sure
pen blanks --- probably all have been moistened for the pics; the last image was specifically stated to be of moistened blanks
