Noun: ruby silver
- A red silver ore composed of silver, arsenic, and sulphur
"Proustite's beautiful red colour earned it the nickname 'ruby silver'";
- proustite
- A dark red silver ore composed of silver, antimony, and sulphur
"Pyrargyrite's deep red colour in transmitted light gives it the name 'ruby silver'";
- pyrargyrite
Derived forms: ruby silvers