Related Clues:

• Metal mixture
• Steel, e.g.
• Schooner, e.g.
• Calm water metaphor
• You can see right through it
• Sand product
• Cupronickel, for one
• Magnalium, e.g.
• Mix of metals
• Bronze, for one
• Brass, for one
• Brass or bronze, e.g.
• Kind of jaw
• Einstein on the Beach composer
• Stainless steel or brass, e.g.