Talk:Sardonyx/@comment-25867210-20150816032836/@comment-24253146-20150816051327

Neither of those things are actually correct. Sard is a type of solid-colored chalcedony quartz, while sardonyx is type of banded agate and the term onyx refers to a layered stone with black (in this case brown) and white bands. Onyx in this case refers to a type of stone and not the actual stone and the sard is just a coincident. Go here if you still dont understand.