Posting this largely fordreaming_brooke , who was curious about Orthodox Christianity, as it contains plenty of basic information about hagiographic, iconographic and liturgical symbolism, presented in a concise and understandable form.
This is the first part of a massive translation project I did almost a year ago for Yuri Fedorov ( http://www.feodorov.ru/katalog.htm ) and Dona Dei ( https://donadei-shop.com/ ), who are going to sell and promote his items in Lithuania. By all means visit those sites - the jewellery may well be the most beautiful I've ever seen and one can sense the inspiration of the artist when looking at his work. Can't place it under a cut for the moment as the system appears to be broken.
( translation project - crosses, part 1 )