Rosieposie - "Rock crystal cut" is a very special and complex type of cutting and engraving with acid polishing. It simulates the few very rare pieces of true rock crystal carving of objects such as decanters.
Thomas, ormalu is the excess very ornate curly, curvey, frilly, leafy, glided metal stuff applied to antique furrniture anywhere it can be attached.... in the style of the cutting and engraving on your decanter.