New video: "Is the Voynich Manuscript fake?"

[asteckley]

The issue with the Vinland Map titanium was, as you say, that it was in the modern anatase form.

Let me share what I know of the chemistry involved...

Jorge,
"Magnesium" (the forum user, not the element) has also located a reference where a 15th century manuscript's ink was found to contain Titanium due to its inclusion within crystaline quartz (silicon and oxide): (You are not allowed to view links. Register or Login to view.).

So there IS a potential explanation for the presence of a Titanium in the McCrone results (assuming their analysis shows the presence of sufficient Si (and O) sufficient to indicate quartz crystals).