There is a FairMormon Blog discussing this topic. It begins:
Over at The Nauvoo Times, my latest post, “The Temple in the Book of Mormon,” points to several recent discoveries or scholarly developments that help us better appreciate the influence of ancient temple concepts in the Book of Mormon. One of the topics there that I enjoyed learning about most was the possible role of ancient sacred relics in Nephite religion serving a role similar to the relics of the Ark of the Covenant in the Jewish temple. Here I combine a portion of my previous post with some additional information.
For more information, click here.