where do cat's eye shells come from
Operculum (gastropod) The operculum of certain species of Turbinidae is sometimes used as a very inexpensive organic "gemstone" in rings, bracelets, amulets etc. These opercula are commonly known as "cats eye" (or more recently "Shiva's eye").
Rib eye steak The rib eye or ribeye is a beef steak from the rib section. The rib section of beef spans from ribs six through twelve. Ribeye steaks are mostly composed of the longissimus dorsi muscle but also contain the complexus and spinalis muscles.