The brother of Jared prepared two stones for each of the Jaredites’ eight seagoing vessels and took them to the Lord with the request that he touch them and make them shine. It is interesting that our modern scientific advances have taught us that some types of stone, as silicon, have chemical properties that can provide luminescence, but God, the Master Creator, who knows the physical properties of stones, can energize them with his light. See also commentary at Ether 6:2–3, 7–8.