Complex sentence: The delicate nature of the gold crowns comes from the thin sheet gold cut to make the crowns and the other ornamentation makes the crown very impractical to wear and some believe that the crown may have been made specifically as a burial good.
Split into simpler sentences: The delicate nature of the gold crowns comes from the fact they were made from cutting thin sheet gold. The crown is impractical to wear and some believe that the crown may have been made specifically as a burial good.