I found this from the LDS church’s site after putting in the search engine ‘seer stones’:
**
As Oliver Cowdery testified a few years later: “These were days never to be forgotten—to sit under the sound of a voice dictated by the inspiration of heaven, awakened the utmost gratitude of this bosom! Day after day I continued, uninterrupted, to write from his mouth, as he translated … the history or record called ‘The Book of Mormon.’” (JS—H 1:71n.)
The details of this miraculous method of translation are still not fully known. Yet we do have a few precious insights. David Whitmer wrote:
“Joseph Smith would put the seer stone into a hat, and put his face in the hat, drawing it closely around his face to exclude the light; and in the darkness the spiritual light would shine. A piece of something resembling parchment would appear, and on that appeared the writing. One character at a time would appear, and under it was the interpretation in English. Brother Joseph would read off the English to Oliver Cowdery, who was his principal scribe, and when it was written down and repeated to Brother Joseph to see if it was correct, then it would disappear, and another character with the interpretation would appear. Thus the Book of Mormon was translated by the gift and power of God, and not by any power of man.” (David Whitmer, An Address to All Believers in Christ, Richmond, Mo.: n.p., 1887, p. 12.)**
lds.org/ensign/1993/07/a-treasured-testament?lang=eng
The head in the hat translation is also here in the LDS magazine for its members:
lds.org/ensign/1977/09/by-the-gift-and-power-of-god?lang=eng
Also, some people claim that the LDS church hides the translation process by its artistic interpretation but the LDS artists take their interpretation from this:
**One document explicitly says that the translator placed the Urim and Thummim over the characters on the plates, though it must be judged with great caution. It comes from a late but good source, Samuel W. Richards, a seasoned missionary and administrator in the Church. In returning from Britain in 1848 he lived temporarily in the area below Council Bluffs, and by coincidence Oliver Cowdery and his family asked for hospitality with him on their way from the Bluffs to visit Elizabeth Cowdery’s brother, David Whitmer, at Richmond, Missouri. This much is clearly factual. Later Brother Richards told of his extended visit with Oliver Cowdery, who freely talked of the spectacular events in the founding of the Church. When Brother Richards was eighty-two, he dictated a statement reporting Oliver Cowdery’s recollections of Book of Mormon translation:
“He represented Joseph as sitting at a table with the plates before him, translating them by means of the Urim and Thummim, while he (Oliver) sat beside him writing every word as Joseph spoke them to him. This was done by holding the ‘translators’ over the hieroglyphics, the translation appearing distinctly on the instrument, which had been touched by the finger of God and dedicated and consecrated for the express purpose of translating languages. Every word was distinctly visible even to every letter; and if Oliver omitted a word or failed to spell a word correctly, the translation remained on the ‘interpreter’ until it was copied correctly**.”
lds.org/ensign/1977/09/by-the-gift-and-power-of-god?lang=eng
I think that information can be found if Mormons knew how to find it. It seems that many do not know how to search their own church’s website.