Lot of Religious (Catholic ?) Medals / Pendants on Chain Silver

Lot of 7 religious medals. I am not an expert in religion but believe these are all Catholic prayer / protection medals / pendants. I am not sure what the metal content is. I am super weird about how I handle any religious item and do not test them. Likely Sterling silver. Total approximate weight is 26.6g Note: Most of my jewelry is pre-loved. I only wipe down jewelry. I do not deep clean any jewelry before shipping. I am not a professional and do not want to risk damaging any vintage item. There may be a small amount of verdigris. I will note any flaws/defects. Lighting might affect the colors in the photos. I will try to describe as accurately as possible. Please see all photos and do not hesitate to ask questions.