A mercury glass mirror is a decorative mirror with a distinctive silvery, reflective finish created using a traditional silvering technique rather than actual mercury in modern productions. These mirrors feature a characteristic speckled or mottled appearance with an antique patina that creates depth and character. Originally popular in the 19th century, authentic antique mercury glass mirrors used mercury-tin amalgam, while contemporary versions use silver nitrate solutions to achieve the same effect safely. Prized for their vintage charm and ability to add warmth to interiors, these mirrors are frequently used as statement pieces in eclectic, traditional, and vintage-inspired décor schemes.