Similar Material it-1 “Chalcedony” Chalcedony Aid to Bible Understanding Sardonyx Insight on the Scriptures, Volume 2 Onyx Glossary Sardonyx Aid to Bible Understanding Chrysoprase Insight on the Scriptures, Volume 1 Chrysoprase Aid to Bible Understanding Jewels and Precious Stones Aid to Bible Understanding Agate Aid to Bible Understanding Agate Insight on the Scriptures, Volume 1 Dazzling Gems to Delight You Awake!—1980