When I read "not stabilized", the first thing I thought was TUNG OIL.
Be nice to see what Mango wood looks like after 15-20 light coats of Tung Oil done 2-3 days apart.
That last pic is with three coats of tung oil mixed 50:50 with mineral spirits, at least a week between coating runs. The wood isn't really taking it in, so must be a particularly hard piece. (better for me!)
I'll keep working on it, of course.