O.k., how do I know whether I have the real lignum vitae or the Argentine vera wood? I have bought l.v. twice, and both times the sellers swore it's the real stuff. But what do I know... This is a handle I made from it a while ago from the stash I have. Just made another one that looks very similar. The do produce an oily, yellowish 'dust' when you drill them. I was hesitating to use them, but I have had them for years and don;t think they could get much drier than that.
Now, I picked up a few pieces from Woodcraft a few weeks ago that supposedly were Argentine l.v., and they were clearly oxidized and bright green on the outside. Haven't sanded them, yet, so I don't know what the inside will look like. But if anybody knows how to reliably tell them apart, please let me know.