If produced by God it will display characteristics altogether different with regard to the content and object of faith. Natural faith involves trust. So does supernatural faith. But we must not let the similarities obscure the eternal differences. The eternal gap which separates them is their origin.
Natural faith propels the creature to heights of charity and love, so does supernatural faith.
Both trust their objects. Surely not the amount of faith, but rather the origin, content and object of faith. Despite the common good done in the name of faith, the natural faith of man is odious to God. Because it like every other notion of man is sin laden and deceitful. It is warped and not clear eyed.