What causes mercury mirror foxing?

Foxing occurs when air and moisture seep behind the glass over decades, reacting with the metallic backing and causing dark, mottled spots. This natural oxidation process is precisely what gives antique plates their distinct, shimmering depth.

Are these mirrors actually made of mercury?

Most historic pieces use a silver and tin solution, though the historic term mercury glass persists for plates produced in the nineteenth century. True mercury backing was largely phased out due to toxicity concerns during manufacturing.

How do I style a trumeau mirror?

Trumeau mirrors work well mounted above mantelpieces or console tables where their height and integrated painted panels can serve as a focal point. Their substantial proportions anchor a room and reflect ambient light across the space.

How do I clean an antique mirror plate?

Clean the glass gently with a soft dry cloth, avoiding harsh modern chemical cleaners that might damage the fragile aged backing. Take care around the edges where the silvering is most vulnerable to moisture intrusion.